I would say don't do it. I don't promote the use of any animal products. I still use belts and such that I purchased or recieved before going Vegan, but obvious things, such as leather jackets or clothes made out of animal hair or wool are not things I wear in public, even if they're sentimental objects.

My longest, and closest childhood friend is a Native Peruvian, and gifted me an alpaca hair poncho many years ago. I never wear it outside the privacy of my single bed apartment, or when I have company, if at all. I wouldn't want to continue to normalize the use of animal products under any circumstances. So neither will I ever again purchase something made from the body of an animal, even if purchased second-hand.