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 Powdered Milk Taste Better
Making a Paint Mixing Stick Glow in the Dark Decoration
Using Powdered Eggs
Homemade Matte Medium Recipes?
What Is 10X Sugar?
Making a Hair Dryer Painting