Bee rock project was very popular! Here's another project involving rocks and games. You can make your own natural dominoes by using smooth flat stones and a white paint pen. Even white out/liquid paper will do! Gather 28 rocks and create the dots and lines. Begin by drawing a line across the center of each. Then on either side of the line, mark with two sets of dots in every combination from zero to six. You can store them in a drawstring pouch for your next game! This is a great idea for a group of kids - each can work on a few dominoes and then they can play together when they are done creating them!
Idea and photo courtesy of Martha Stewart!