Clean a My Little Pony by gently washing the body with liquid dish detergent and shampooing and conditioning the hair. Remove stains from the body with a magic eraser, and use a pipe cleaner or small brush to clean the interior of the pony.
If a pony is dingy, soaking it in a solution of oxygen bleach and water brightens the color. Remove the head to clean the inside of the pony thoroughly. Flexible aquarium brushes and cotton swabs help in cleaning less accessible portions of the inside of the body, including the hooves and ears. If the hair is unmanageable, rinse it with some fabric softener, or rub wet hair with a dryer sheet.