what you need: * smooth, flat rocks * crayons (with papers peeled off) * pot holders first step: heat rocks on a foil lined baking sheet at 350 degrees for about 15 minutes. second step: using pot holders... lay rocks on newspaper or towels. then decorate with crayons. rocks will be HOT, so be careful. the crayons melt as they touch the hot rocks making the colors bright and fun.
Just take your hot glue gun and make a design on some cardboard (squiggles, shapes, smiley faces, stripes, etc – hey those all start with S… weird!). Once it’s completely cooled and dried, you can set a piece of paper over the design and rub it with the side of a crayon (remove crayon wrapper first).
If you have not done this yet, you need to. Simply warm up the rocks in the oven (I did 220 for 10 minutes), then put them on a stack of newspapers (or something else you don't care if it gets crayon in it) and let the little ones go to town. Just remind them it is hot. I have done it with 2 1/2 year olds with no problem. My little lady often brings in rocks for me to "cook" so she can paint them