Painted Rocks

I think painting rocks like Easter eggs with acrylic paint would be fun.

I am worried about drying time and where to find 100 to 150 rocks all egg sized.

Any suggestions would be great!

I saw this idea HERE.

I also love the idea of heating the rock and letting the crayon melt on it! Seen HERE and HERE.

UPDATE:


These turned out great! One of my friends suggested putting them in the crockpot with water on low. It made them warm but not too hot to touch. We simply took them out with tongs and dried them on a towel before drawing on them with crayons. This is possible to do with 100+ kids.