Say HAPPY BIRTHDAY with a personalized card you make yourself! Give someone a happy-birthday greeting with one of these 20 cards plus envelopes! Each one features a different cheerful design, including a birthday cake, friendly elephant, and kooky monsters bearing gifts. Just color them in, tear out the perforated page, and send them to a friend. In addition to the cards, you get more than 100 stickers to use as decorations.   Reformat of Color Your Own Birthday Cards boxed set .