Make Your Own Cotton Slime Snowballs at Home Looking for a wintery sensory experiment kids will love? These Cotton Slime Snowballs are fluffy, stretchy, and perfectly snow-like without the cold. With just a few simple ingredients, you can create soft, cozy “snowballs” that feel like snowy magic in your hands. Ingredients (makes several snowballs): White school glue – gives the slime its stretchy base Shaving cream – adds fluffy, snow-like volume Cornstarch – creates a soft, cottony texture Salin