When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Try a little WD40 or a liquid tar remover, either one should take car of it. I've also seen gum remover with the cleaning supplies in some stores. Look for that if the WD40 doesn't work.