Hey Nick:
I called my good buddy Bill Wrigley this morning, and he e-mail this to me from his web site:
"
For washable clothes, you might first try scraping off any excess gum with a dull knife and then rubbing the area with ice until the remaining gum rolls off into a ball. Another method is to seal the dry garment in a plastic bag and place it in your freezer. After the garment is frozen, remove and gently scrape off the gum with a dull knife.
There are also natural solvents extracted from citrus peels which are environmentally safe and work quite well in removing chewing gum from various surfaces, including cloth. As a matter of policy, we don't give out specific brands names, but you can find these citrus-based solvents in food and drugstores, as well as health food stores.
While there are no "guaranteed methods" for gum removal, please check the National Association of Chewing Gum Manufacturers at www.nacgm.org for more information. They have a section on their web site called "Tips for Getting Unstuck". You may also contact them at:
NACGM
17000 Commerce Parkway Suite C
Mt. Laurel, NJ 08054
856-439-0500
856-439-0525
nacgm@ahint.com"