Can cats 'ham' it up? On this collection of ten Birthday Joke Cards they sure do! Cartoon kitties knock back a few at a bar, push cups on a coffee counter, click onto food blogs, latch onto some mind-blowing 'catnip,' field calls at a feline support center, visit the feline hall of fame, and check out their cellphones, on these colorful, hilarious cards. Complete with cat-printed birthday punch lines on all of the cards' insides. Being downright catty about someone else's birthday never came out so feline fine.