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21st Birthday Cards

Drink ... drank ... drunk? Not too much, we hope. Send a 21st Birthday Card to someone who has hit that milestone like a boss and is ready to celebrate. Choose from 790+ exceptional designs, add your personal message, and we'll mail it next business day. Throwing a party? No worries. We have 21st Birthday Party Invitations, too. Yeah, 'cause we're cool like that.

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Birthday (187,719)
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Shopper Testimonials
“There is a great selection of cards at a good price with fast shipping and the packaging of the cards is professional. Check it out on their website.”
Thomas - Sep 16th, 2025
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Cards per Page:
Cards: 619 Pages: 21
Most Popular Newest Show adult cards
Happy Birthday - A birdy Told Me you’re 21 card
Golden Birthday Turning 21 on the 21st Custom Mont…
Purple and Yellow Cirlces 21st Birthday Card
21st Birthday, adult humor, A mug of beer in front…
21st birthday slot machine card
Celebrating your 21st birthday!, yellow sunflowers…
Custom Name Photo 21st Birthday Pink Yellow flower…
Red Rose a Special 21st Birthday Wish card
Custom Name Deanna 21st Birthday Cake Custom Photo…
21st Birthday- Humorous Card with baking Hippo car…
21st All Sports Birthday Balls Red card
Happy Birthday - Mendhi - 21 years old card
21st Birthday Talking Horse card
Club 21 Pink card
Jubilant Red Lily 21st Birthday Wishes, Custom Nam…
Happy 21st Birthday - Dynamite Dog card
Happy Birthday, 21 today, border collie dog in bob…
Beer Mug Neon Sign 21 Years Old Happy Birthday car…
Vegas at 21? happy birthday card
Birthday - Being 21 is great card
21st Birthday Lady on Cake with Cocktail. card
Happy 21st Birthday, Reflection, Balloons card
21st Birthday Metal Abstract card
21st Birthday Humor card
21st Birthday close up of a used baseball in grass…
Eye card
F-bomb birthday - 21 years old card
21st Birthday Pink Swan card
Happy 21st Birthday, Coins card
21st Birthday - Colorful Ink Splatter card
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