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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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Shopper Testimonials
“Always the PERFECT card -- for any occasion, and personalized!!!!! LOVE these cards! Won't buy any others! Even special requests by the artist! :)”
Patricia - Jul 10th, 2018
“The cards exceeded my expectations. I have a hard time finding cards for my mom to give as she is a Great Grandma and there are not many available. I had several choices and was even able to customize one of the cards. While buying the Great Grandma cards I picked four others. I love them all and the quality and pricing were very good. Thank you.”
Susan - Jul 8th, 2018
Cards per Page:
Cards: 213 Pages: 8
Most Popular Newest Show adult cards
Happy Pi Day to Nerd, 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 a Nerd!
Product Id: 910549
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: The Pi is Falling! Illustration of slices of cherry pie and a paper with pi calculated falls through the sky. © Designed by Shoaff-Ballanger Studios.
Product Id: 911201
Pi Day 3.14159 Birthday, Cherry Pie card
Customize: Inside text only
Inside Text: Have lots of "pi" on your Pi Day Birthday since it’s fat-free, calorie-free, and lasts forever!
Artist: Shoaff-Ballanger Studios
Artist Notes: Pi ala mode! Illustration of cherry pie and the infinite Pi. © Designed by Shoaff-Ballanger Studios.
Product Id: 910863
Pi Day 3.14159 for Niece, Numbers & Equations card
Customize: Inside text only
Inside Text: I’m crunching the numbers and I figure it’s that time of year to wish my smart niece a Happy Pi Day!
Artist: Shoaff-Ballanger Studios
Artist Notes: Numbers from various license plates and parts of a geometry equation for a circle. © Image by Shoaff-Ballanger Studios.
Product Id: 911574
Pi Day 3.14159 for Nephew, 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 smart nephew a Happy Pi Day!
Artist: Shoaff-Ballanger Studios
Artist Notes: Numbers from various license plates and parts of a geometry equation for a circle. © Image by Shoaff-Ballanger Studios.
Product Id: 911577
Pi card
Customize: Inside text only
Inside Text: Happy Pi Day
Artist: Imaginary Story
Product Id: 567986
Happy Pi Day Birthday Multicolor and Teal card
Customize: Inside text only
Inside Text: May your day be constantly and enchantingly delightful!
Artist: Christi Madden
Artist Notes: So someone has a birthday on Pi Day (not to be confused with Pie Day, which is in January); wish them an irrationally happy birthday with multicolor text on teal — it's the only rational thing to do!
Product Id: 910642
Pi Day Dreamer - FUNNY card
Customize: Inside text only
Inside Text: Well you are now! (hopefully) Have a wonderful 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: 576466
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: Numbers from various license plates and parts of a geometry equation for a circle. © Image by Shoaff-Ballanger Studios.
Product Id: 911587
Pi Day in bed - FUNNY card
Customize: Inside text only
Inside Text: Then subtract this from your normal wake up time and then you’ll know exactly how much sleep you’ve lost. Math lesson over. Have a wonderful 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: 576457
Pi Day 3.14159 Anniversary, Numbers & Equations ca…
Customize: Inside text only
Inside Text: I’m crunching the numbers and I figure it’s that time of year to wish a wonderfully smart couple a Happy Pi Day Wedding Anniversary!
Artist: Shoaff-Ballanger Studios
Artist Notes: Numbers from various license plates and parts of a geometry equation for a circle. © Image by Shoaff-Ballanger Studios.
Product Id: 911647
Pi Day to Daughter 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: This Pi Day Card will be perfect to send to your daughter. Celebrate Pi Day and have fun with this graphic black and white card which depicts the Pi symbol over a circle filled with the 3.14 Pi number carried out to many places!
Product Id: 1011031
Pi Day to Wife 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: This Pi Day Card will be perfect to send to your wife. Celebrate Pi Day and have fun with this graphic black and white card which depicts the Pi symbol over a circle filled with the 3.14 Pi number carried out to many places!
Product Id: 1011039
Happy Pi Day Anniversary Multicolor and Teal card
Customize: Inside text only
Inside Text: May your day be constantly and enchantingly delightful!
Artist: Christi Madden
Artist Notes: Help them celebrate their anniversary on Pi Day with a multicolor “Happy Anniversary on Pi Day” wish on a teal background with an attractive leafy border.
Product Id: 910639
Birthday on Pi Day, 3.141592653 in a pie filling c…
Customize: Inside text only
Inside Text: May your birthday be a constantly happy day!
Artist: Cisillia Tay
Artist Notes: Fun illustration of a pie with a numerical filling. The 'ir' in 'Birthday' is replaced by the symbol for pi.
Product Id: 1078254
Happy Pi Day card
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: 911631
Husband Happy Pi Day 3.14 March 14th card
Customize: Inside text only
Inside Text: I know how you love things ... irrational
Artist: © Pamela Jorgensen/PamJArts
Artist Notes: Does your husband love math? Send him 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: 910681
Happy Pi Day to my Student, 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 your Student!
Product Id: 910558
Pi Day Humorous Pi Recipe March 14th card
Customize: Inside text only
Inside Text: Pi Recipe Ingredients: 3 c. infinite series ¼ tsp. approximation 1 Tbl. inner complexity 5 oz. paradoxical 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 card celebrating National Pi Day (March 14th) features a funny Pi recipe inside. Give this to anyone with a love for math. This would also be appropriate for any math lover on their birthday ... just replace "Happy Pi Day" with "Happy Birthday". Click on "Personalize it" to make changes.
Product Id: 910940
Happy Birthday On Pi Day Smile card
Customize: Inside text only
Inside Text: Sending you infinite hugs and wishing you infinite good times for your Birthday 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 who have a birthday on Pi Day. Original design by Anura Design Studio.
Product Id: 910604
Pi Day 3.14159 Anniversary, Cherry Pie card
Customize: Inside text only
Inside Text: Have lots of "pi" on your Pi Day Wedding Anniversary since it’s fat-free, calorie-free, and lasts forever just like your love for each other!
Artist: Shoaff-Ballanger Studios
Artist Notes: Pi ala mode! Illustration of cherry pie and the infinite Pi. © Designed by Shoaff-Ballanger Studios.
Product Id: 910864
Happy Birthday, Celebrate in Style and Happy Pi Da…
Customize: Inside text only
Inside Text: Oh yea, by the way Happy Birthday! Celebrate in style.
Artist: gingcard designs
Artist Notes: Here is a bit of trivia. The big Pi Day moment Is coming! Well, not this year, but in 2015, it will make it a magical Pi Day and year. Think of it, the symbol for Pi = (3.141592653) = 3/14/15 at 9:26:53 AM & PM. Geeks Unite! Thank you for choosing my cards. gingcard designs by Ginger Brown
Product Id: 910970
Cake Pi Day 3.14 March 14th Birthday Card
Customize: Inside text only
Inside Text: Enjoy your special day and eat lots and lots of PIE! Happy Birthday xx
Artist: Moonlake Designs
Artist Notes: Birthday Cake Pie Greeting Card
Product Id: 910795
Pi Day to Friend Black and White Pi with 3.14 card
Customize: Inside text only
Inside Text: Have a happy PI DAY filled with a million good wishes!
Artist: Sandra Rose Designs
Artist Notes: Send a great Pi Day card to your friend. In graphic Black and White, this Pi symbol is filled with the Pi 3.14.
Product Id: 1010543
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
Happy Pi Day, Geeks Unite!, 3.14 card
Customize: Inside text only
Inside Text: Geeks Unite! It is for someone just like you Enjoy the day.
Artist: gingcard designs
Artist Notes: Here is a bit of trivia. The big Pi Day moment Is coming! Well, not this year, but in 2015, it will make it a magical Pi Day and year. Think of it, the symbol for Pi = (3.141592653) = 3/14/15 at 9:26:53 AM & PM. Geeks Unite! Thank you for choosing my cards. gingcard designs by Ginger Brown
Product Id: 910982
Pi Day 3.14159 from Both of Us, Numbers & Equation…
Customize: Inside text only
Inside Text: We’re crunching the numbers and we figure it’s that time of year to wish you a Happy Pi Day!
Artist: Shoaff-Ballanger Studios
Artist Notes: Numbers from various license plates and parts of a geometry equation for a circle. © Image by Shoaff-Ballanger Studios.
Product Id: 911643
Happy Anniversary Pi Day 3.14 March 14th card
Customize: Inside text only
Inside Text: May you continue infinitely Happy Anniversary!
Artist: © Pamela Jorgensen/PamJArts
Artist Notes: Know someone who loves math? Celebrate Pi Day by sending this Happy Anniversary 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: 910670
Pi Day to Math Teacher from All of Us, Black & Whi…
Customize: Inside text only
Inside Text: Wishing you a Pi day to have fun, celebrate, and be irrational!
Artist: Sandra Rose Designs
Artist Notes: Sent from a group of people, this Pi Day Card will be perfect to send to your Math Teacher. Celebrate Pi Day and have fun with this graphic black and white card which depicts the Pi symbol over a circle filled with the 3.14 Pi number carried out to many places!
Product Id: 1011023
Happy Pi Day to our Teacher, 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 your Teacher when you are student.
Product Id: 910522
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