My dogs ate my daughter's crayons!

I dropped off my daughter this morning at her pre-school this morning. When I came home after that, I noticed a shredded crayon box right in middle of my living room along with other shredded paper. My daughter was using crayons at her little table in the living room, but she left them right on her table. But now, her crayons are no where to be found. I realized that as soon as I came home, my 2 dogs immediately went upstairs, remember, these dogs usually greet me at the door. I think that 2 dogs worked together and made this mess. I suspect that my youngest lab(Yoda) got the crayons off of my daughters little table and the older lab(Mika) ate the crayons. I will never find out what exactly happened this morning, but I hope none of my dogs are going get sick for eating crayons........... I am really not in the mood to clean up their vomit today:-(