During the one hour You Rock! class, we looked at many different rocks through hand lenses. We discovered that dipping rocks into water helps you really see the colors hiding under the gritty surface.
After making our observations, we chose a smooth beach stone weathered by wind and water to decorate with acrylic craft paints. The dotting tools we used were fantastic for making small intricate designs. We practiced on paper first to get the hang of it.  Then students chose to make a mandala design or something else!

These are the tools we use in class and they are wonderful. You really only need one set. The set below with the blue handles have some very large dotting ends. We also used fine tipped paintbrushes from Michaels. Clicking on the pictures below will take you to Amazon's page.