Choose a variety of different sized Styrofoam balls (they can be dirty or used from a previous project). Insert a dowel or skewer into each one to use as a handle.
Coat the ball in a thick, uneven coat of texturizing medium. I use Duncan Snow Accents. Allow a little extra to accumulate on the inserted stick for the finishing step.
Sprinkle a generous amount of glitter or crushed glass diamond dust over each ball, and allow to dry. This drying process can be sped up slightly by using a hair dryer, but do not hold the hair dryer too close to the ball or it can melt. When completely dry, remove the stick. Fill in the hole left behind using the excess amount of texturizing medium remaining on the stick.
Plastic glitter is better to use when doing this project with children, as the crushed glass diamond dust can be dangerous to use with young kids. Be very careful when working with diamond dust. Extra precautions should be taken when handling items made with this crushed glass glitter, as well as cleaning up the work area after projects have been completed. I use a damp paper towel to wipe surfaces rather than my bare hand.