Easter - Our book about Oviparous Animals

After reading Chickens Aren't the Only Ones,  we made books about oviparous animals.  The pages are colored ovals that get smaller as the book progresses.  We painted the cover with water colors (before they were stapled onto the book :)

Last year I put them in a giant Easter basket.  This year (with only 1/2 days) I'm just hoping to get all the painting done by Spring Break.  I've been making these for years and don't remember where I first saw the idea.