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Holidays > Pi Day 3.14159 Cards
3.14159 Pi Day Cards
Celebrate the mathematical constant and be irrational with whimsical Pi Day cards! After putting down your slice of pie, choose from 180+ one of a kind designs for this unique and nerdy unofficial holiday. We'll won't make you wait 3.14 weeks either - your smiles will be in the mail next business day.
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“Love all the cards as usual great quality!”
Michele - Sep 23rd, 2020
“Greeting Card Universe has the appropriate card for every occasion. They use a sturdy stock of paper for cards and envelopes. Have never been disappointed with an order.”
Frances - Cotuit, Massachetts - Sep 22nd, 2020
Peace, Love, and Pi; Math Lover’s Card
| Customize: | Inside text only |
| Inside Text: | Happy Pi Day! |
| Artist: | Kimberly Holt |
| Product Id: | 44062 |
Happy Pi Day March 14th 3.14 Pi in the sky card
| Customize: | Inside text only |
| Inside Text: | Pi in the sky? That is irrational. Happy Pi Day |
| Artist: | © Pamela Jorgensen/PamJArts |
| Artist Notes: | Love math or simply want to impress your math teacher? Celebrate Pi Day by sending this Happy Pi Day card showing 'Pi' in the sky, now that's irrational. I am happy to change the card front to your needs. Custom requests available. Pamela/PamJArts |
| Product Id: | 386126 |
Pi Day Keep Calm and Stay Rational, Red & White, 3…
| Customize: | Inside text only |
| Inside Text: | Hope you have a fun but rational Pi Day! (Whether you consider it irrational or not.) |
| Artist: | Sandra Rose Designs |
| Artist Notes: | Have fun with this graphic red and white card to wish a happy Pi Day to anyone. This card humor is based on the Queen's famous quote: Keep calm and carry on. |
| Product Id: | 1011051 |
A Humorous Pi Recipe for National (World) Pi Day -…
| Customize: | Inside text only |
| Inside Text: | Pi Recipe 3 c. infinite series ¼ tsp. approximation 1 Tbl. inner complexity 5 oz. paradoxicality a dash of the irrational a hint of existential nothingness Mix together and bake at 314° for 1 hour, 59 min. Let cool. Serves an infinite number of people. Happy Pi Day! |
| Artist: | Evelyn Mancino |
| Artist Notes: | This Pi Day card celebrates National Pi Day with a funny recipe inside. Perfect for a math teacher, professor, student, engineer, statistician, biochemist, etc. Pls. see my Pi Day cards with circles instead of squares: enter 910940 in the search box. Also for teacher: 910939, for husband: 910943, for wife: 910944, for co-worker: 910941, on your anniversary:910937 and on your birthday: 910938. |
| Product Id: | 900418 |
Pi Day card
| Customize: | Inside text only |
| Inside Text: | I sure couldn’t find it, but I’m sure you can. Happy Pi Day! |
| Artist: | Tom Rent |
| Artist Notes: | Free Modifications. Contact me through my Card Store. - Tom Rent |
| Product Id: | 387611 |
Happy Pi Day 3.14 March Irrational Math Equation C…
| Customize: | Inside text only |
| Inside Text: | CALCULATE the possibilities. |
| Artist: | © Pamela Jorgensen/PamJArts |
| Artist Notes: | Send along your Pi Day greetings with this celestial image with a silhouette of a person sitting on a rock contemplating the infinite. The image has the symbol of Pi and a greeting in a partial circle surrounding 3.14 against the starlit sky. Design created using photographic content from skeeze and Free Photos on Pixabay. ©PamJArts |
| Product Id: | 1533888 |
Happy Pi Day 3.14 March 14th to Math Teacher card
| Customize: | Inside text only |
| Inside Text: | To a great math teacher ... celebrate being irrational. |
| Artist: | © Pamela Jorgensen/PamJArts |
| Artist Notes: | Love math or simply want to impress your math teacher? Celebrate Pi Day by sending this Happy Pi Day card showing 3.14 ... to the ultimate I could fit on this card! I happy to change the card front to your needs. Custom requests available. Pamela/PamJArts |
| Product Id: | 910501 |
Multicolor Happy Pi Day Wish on Teal card
| Customize: | Inside text only |
| Inside Text: | Constantly irrational, Irrationally constant - Number without end. Have an Irrationally Happy Day! |
| Artist: | Christi Madden |
| Artist Notes: | This is one irrational number that has its own holiday! Celebrate the irrational number pi with a multicolor “Happy Pi Day” wish on a teal background with an attractive leafy border. |
| Product Id: | 910599 |
Happy Pi Day -General, 3.14 card
| Customize: | Inside text only |
| Inside Text: | Hope you get your piece of the Pie! |
| Artist: | Gerda Steiner |
| Artist Notes: | This design shows a pie with the constant pi on it. The pie is displayed on an orange and green circle. This card is a fun way to wish Happy Pi Day to someone! |
| Product Id: | 910559 |
Pi Day, Keep Irrational and Carry On, Red, Funny c…
| Customize: | Inside text only |
| Inside Text: | Try to stay rational the rest of the year! Happy Pi Day |
| Artist: | Sandra Rose Designs |
| Artist Notes: | "Keep irrational and carry on" is what this red card says on the cover. You can also see the Pi symbol on the upper front of this card. Send Pi Day greetings with this one. |
| Product Id: | 1007957 |
Pi Day Birthday Black & White, 3.14 Circle card
| Customize: | Inside text only |
| Inside Text: | Wishing you a Pi Day Birthday to have fun, celebrate, and double the reason to be irrational! |
| Artist: | Sandra Rose Designs |
| Artist Notes: | A dual celebration is about to happen! Someone you know will be having his birthday coinciding with the Pi Day celebration too. Now this card was designed to greet them on their birthday and also too join with him or her as Pi Day is commemorated. |
| Product Id: | 1011045 |
Pi Day room for Pie - FUNNY card
| Customize: | Inside text only |
| Inside Text: | Food and math are clearly related somehow. I’m pretty sure of it. Happy Pi Day! |
| Artist: | Tom Rent |
| Artist Notes: | This can also be changed into an announcement, invitation, or congratulations card by you changing the inside text using the Personalization option - It's EASY! Free Modifications. Contact me through my Card Store. - Tom Rent |
| Product Id: | 576482 |
Pi Day 3.14159 for Math Lover, Numbers & Equations…
| Customize: | Inside text only |
| Inside Text: | I’m crunching the numbers and I figure it’s that time of year to wish a math lover a Happy Pi Day! |
| Artist: | Shoaff-Ballanger Studios |
| Artist Notes: | Happy Pi Day greeting card for a math lover. Celebrate Pi Day and the love and beauty of math with this contemporary and creative design. |
| Product Id: | 911639 |
Happy Pi Day Black and White with 3.14 in Red, hum…
| Customize: | Inside text only |
| Inside Text: | Is today the tomorrow you worried about yesterday? Don’t think about it too long, just have a good PI DAY! |
| Artist: | Sandra Rose Designs |
| Artist Notes: | Part of the never-ending value of PI is written on the cover of this black card that you can give to anyone on the celebration of Pi Day. |
| Product Id: | 1007969 |
Happy Pi Day - Panda with a Thought Bubble Thinkin…
| Customize: | Inside text only |
| Inside Text: | Thinking nice thoughts about you is as easy as pi. Happy Pi Day. |
| Artist: | Amy Hadden |
| Product Id: | 1036719 |
Congratulations Wedding on Pi Day 3.14 March 14th …
| Customize: | Inside text only |
| Inside Text: | May you continue infinitely together CONGRATULATIONS! |
| Artist: | © Pamela Jorgensen/PamJArts |
| Artist Notes: | Send your Pi Day wedding congratulations with this understated Pi Day card showing 3.14 ... to the ultimate I could fit on this card! I happy to change the card front to your needs. Custom requests available. Pamela/PamJArts |
| Product Id: | 910696 |
Pi Day 3.14159 from Both of Us, Cherry Pie card
| Customize: | Inside text only |
| Inside Text: | Happy Pi Day from both of us! You can never have too much of this "pi". It’s fat-free, calorie-free, and it lasts forever, so dig in! |
| Artist: | Shoaff-Ballanger Studios |
| Artist Notes: | Happy Pi Day from both of us (from a couple), paper greeting card with some numerals for pi and a cherry pie with ice cream on top. Dramatic design with contrasting colors of red, black, and tan. |
| Product Id: | 910859 |
Happy Pi Day card
| Customize: | Inside text only |
| Inside Text: | Well not the whole day, but they promised to let us out 3.14159265358979323846 hours early! Happy Pi Day! |
| Artist: | Tom Rent |
| Artist Notes: | Free Modifications. Contact me through my Card Store. - Tom Rent |
| Product Id: | 384618 |
Irrational Confession, Humorous Pi Day card
| Customize: | Inside text only |
| Inside Text: | But I have an infinite amount of reasons. Happy Pi Day! |
| Artist: | Lisa Crisafi |
| Artist Notes: | Humorous Pi Day irrational confession card features white pi symbol with an infinite number pattern on black background. |
| Product Id: | 906284 |
Happy Pi Day with chef. Hey Genius, here’s your pi…
| Customize: | Cover text, inside text |
| Inside Text: | Happy 3.14159265 to you! |
| Artist: | © Cheryl M Hall |
| Artist Notes: | DEAR CUSTOMER Front and inside text is changeable to suit what you like...Many more Pi cards in store. Background colors and effects can be changed by contacting artist |
| Product Id: | 911652 |
Pi Day, 3.141592653 in a pie filling card
| Customize: | Inside text only |
| Inside Text: | May your day be a constantly happy one! |
| Artist: | Cisillia Tay |
| Artist Notes: | Fun illustration of a pie filling of 3.141592653. Celebrating Pi Day on March 14. |
| Product Id: | 1078248 |
Pi Day 3.14 for Professor, Numbers & Equations car…
| Customize: | Inside text only |
| Inside Text: | I’m crunching the numbers and I figure it’s that time of year to wish my favorite professor a Happy Pi Day! |
| Artist: | Shoaff-Ballanger Studios |
| Artist Notes: | Pi can be so irrational, but you can be rational and send this Happy Pi Day greeting card to your favorite and smart professor. Bright and colorful design with an infinite decimal, numerals, and geometric signs. |
| Product Id: | 911569 |
Pi Day 3.14159 for Math Teacher, Numbers & Equatio…
| Customize: | Inside text only |
| Inside Text: | I’m crunching the numbers and I figure it’s that time of year to wish my favorite math teacher a Happy Pi Day! |
| Artist: | Shoaff-Ballanger Studios |
| Artist Notes: | Happy Pi Day paper greeting card for a math teacher / math instructor. Colorful and bright design with the beginning numbers of pi and some geometric symbols/parts of equation to calculate pi. |
| Product Id: | 911587 |
Happy Birthday! On March 14th (Pi On A Pie) card
| Customize: | Inside text only |
| Inside Text: | Consider yourself very fortunate to have been born on March 14th, Pi Day. Here’s wishing you a scrumptiously constant day! |
| Artist: | Crumbs & Shards |
| Artist Notes: | If you know of someone who celebrates a birthday on March 14th, you can send them this card with a dose of geek humor. March 14th is also Pi, the mathematical constant, Day. |
| Product Id: | 846308 |
Pi Day to Son Black & White, 3.14 Circle card
| Customize: | Inside text only |
| Inside Text: | Wishing you a Pi day to have fun, celebrate, and be irrational! |
| Artist: | Sandra Rose Designs |
| Artist Notes: | If your dear son love math then he surely deserves to get this card to celebrate on Pi Day. This black and white card feature the Pi sign right on the center front. |
| Product Id: | 1011029 |
Birthday on Pi Day 3.14159, Falling Slices of Cher…
| Customize: | Inside text only |
| Inside Text: | Happy Pi Day Birthday! Forget the cake and grab some slices of "pi". This "pi" is fat-free, calorie-free, and seems to last forever. |
| Artist: | Shoaff-Ballanger Studios |
| Artist Notes: | Happy Birthday on Pi Day, greeting card. Instead of birthday cake this year, have a birthday pie / pi. Digital art illustration featuring pieces of delicious cherry pie tumbling through the air over a paper with pi numerals written on it. Each slice has the symbol for pi baked in. |
| Product Id: | 911201 |
Happy Pi Day Smile card
| Customize: | Inside text only |
| Inside Text: | Sending you infinite hugs and wishing you infinite good times on Pi Day. |
| Artist: | Anura Design Studio |
| Artist Notes: | The Pi Day holiday commemorates the mathematical constant of pi and is the perfect time to celebrate your love, that is as infinite as the value of pi, for your family and friends with this fun card. Original design by Anura Design Studio. |
| Product Id: | 910601 |
Pi Day Surprise - FUNNY card
| Customize: | Inside text only |
| Inside Text: | It’s only like the most important holiday of the entire year! Glad I reminded you! Happy Pi Day! |
| Artist: | Tom Rent |
| Artist Notes: | This can also be changed into an announcement, invitation, or congratulations card by you changing the inside text using the Personalization option - It's EASY! Free Modifications. Contact me through my Card Store. - Tom Rent |
| Product Id: | 576486 |
Pi Day Card Pi A La Mode card
| Customize: | Inside text only |
| Inside Text: | What could be better than Pi à la Mode? Happy Pi Day |
| Artist: | Laughing Hippo Studio |
| Artist Notes: | Pi Day card with the Pi symbol with vanilla ice cream on top of it. Inside says, What could be better than Pi à la Mode? Happy Pi Day |
| Product Id: | 1548406 |
Alien Pi Day card
| Customize: | Inside text only |
| Inside Text: | To many, Pi is an Alien concept! Happy Pi Day! |
| Artist: | Tom Rent |
| Artist Notes: | Free Modifications. Contact me through my Card Store. - Tom Rent |
| Product Id: | 384622 |
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