Happy Birthday Greeting Cards featuring Free Printable Birthday Card: Curious Bunny & Science - Funny Downloadable Gift for Nerds and more

Wish a happy birthday with this funny card featuring a curious bunny and a science diagram! Easy to print at home for a unique greeting.

Wish a happy birthday to the book lover with this funny card! A giggling owl stares blankly at a simple book, easy to print at home.

Wish them a happy birthday with this wonderfully absurd card featuring a squirrel building a skyscraper! Easy to print at home for a unique laugh.

Wish them a happy birthday with this card of mighty effort! A determined bear cub struggles with a feather, easy to print at home.

Brighten their birthday with this free printable greeting card featuring a curious bear cub. Easily print at home for a unique, heartfelt message.

Send smart wishes with this funny Free Printable birthday card, a hoot to print at home.

Send a quirky birthday wish with this funny Free Printable card, fun to print at home.