So....I did the Egg Yolk Craft with the kids last night, and I'm gonna be real here. What a freakin' mess! I sketched out some things so they had a variety to chose from: a flower, funny face, whale, and cup of coffee. They each picked one and got super amped to paint. My 4 1/2 yo cracked the eggs for me and I separated the yolks with my hands actually (cause I like oozy gunk like that). My 2 yo constantly tried to put the egg yolks in her mouth at first, but after several stern warnings, she stopped.