Yes, Marsee and Cortech (and others I'm sure) make some petite little (magnetic) tank bags that will fit Norton tanks. Google/ebay em or the like. My wife has a TINY Marsee -basically holds sunglasses and a pair of gloves (summer! gloves) and a slightly larger Cortech (a bit more practical) that fit her HD Nightster (tiny tank, about the size of my commando's), so would fit a Norton tank, and those bags are well made and worth considering IF they hold enough to suit your purposes.