When using powdered dye (such as tempera paint) and clay, place it in a disposable bowl, and place your hands inside plastic zip top bags. You will be able to mix by hand, and keep clean at the same time.
Making a Hair Dryer Painting
Making a Paint Mixing Stick Glow in the Dark Decoration
What Is 10X Sugar?
Making Powdered Milk Taste Better
Homemade Matte Medium Recipes?
Using Powdered Eggs