Wanna trick somebody on Halloween? Or looking for an original idea for a kids’ Halloween party? These trick or treat stones are perfect! You’ll need 1 cup flour, 1 cup dried coffee grounds, 1/2 cup salt, 1/4 cup sand, 3/4 cup water, glitter, Mod Podge, 1 styrofoam brush, candies, 1 can acrylic spray. In a large bowl place dry ingredients and stir until they are mixed together; slowly add water to the dry ingredients mixing with your hands as you pour the water. The dough should form into balls easily without crumbling; if it does not add more water. Read the rest of the tutorial in the source, finish the stones and trick somebody!