I made a kuspuk style apron last Friday, out of an old sheet. I didn't even need to hem the bottom. It came like that! I saw a lady wearing one at a park and was inspired. It was definitely a hack job, but it only took me about two and a half hours to make. Instead of doing a neck strap, which I can't stand, I crisscrossed the shoulder straps across the back. All it needs now is bright colored rick rack.
I've learned to appreciate aprons, as messes tend to follow me around. They're also very useful for transporting garden produce into the kitchen, particularly with the oversized pocket.
Hopefully, they'll be a great thing to sell. One of the issues with selling clothes at bizarres is that there is no place to try items on. Aprons are easy to try on!