Flight suit link
I was thinking about this recently. I don't think I'd wear one in a Cessna though. The PA28 with its silly door arrangement doesn't appeal to me at all, but if you like that sort of thing it might be worth wearing one as you're probably less likely to get out in a hurry in one of those.
One thing that occurs to me though is that instructors or other commercial pilots don't wear them for straight and levelish stuff. With their higher number of flying hours you'd think their risk exposure would be higher than the average GA pilot. So why don't they wear them?
That link above, supplies them in black or tan so you don't look like a forces has been, and they do gloves as well. Anyone know a better place to buy from?