That glitter shell requires special care. You can tumble the pieces in the dryer (preferably in a mesh net), but be careful--if you have dangling metal clasps or fragile buttons they may need to be removed. This will shake loose some of the extra glitter. You could also use a blow dryer. When it's time to have the garment cleaned, look for a Hydrocarbon cleaner to minimize permanent loss of glitter and ask that they "short run" the garment. Falling glitter is a long term problem that will improve with each cleaning or tumbling, but will rarely disappear completely. - Updated: March 29, 2006