Oooh. That's a good volunteer project for this winter: peter heaters for the homeless vets. I think it more practical than cotton underwear, really, but I would want to make a small alteration in the design that allows for urination without having to remove the entire article. It needs a drawstring on the other end. Oh, and wool and wool blend yarns are forbidden for this project. I think I'll have to invest in bamboo yarn.