2007 V-6 Mustang auto trans shifter handle

For a 2007, your first look might be to Ford dealers for their in-house performance parts availability. I believe the '05 and '06 Mustangs use similar interior parts, so you might try a search on Ebay or Google for "Mustang interior parts" or "Mustang shift handles." The Mustang is one of the great popular American performance cars, so you should find no shortage of options, from billet aluminum to carbon fiber and others.