NEW From the author of Cat Butts, A Coloring Book: Do you or a friend have a birthday coming up? Of course you do Cat Butt Birthday (aka Cat Butt Bday) is the perfect gift for the Cat Butt connoisseur #Cat Butt Bday #Cat Butt Birthday Wanna knock it out of the park with an unusual and unique gag gift for the cat lover and birthday-celebrator in your life? Cat Butt Birthday is the purrfect choice. Inside you'll find Cat Butts eating birthday cake, blowing out candles, enjoying katraoke and more. Cat Butt Birthday is the perfect companion to the cat butt magnet set we all know you and your friends already have. You can color your favorite pages, tear them out and display them proudly on your fridge for all to see.