You can do this! You can zig-zag the edges, go over it a couple of times and it will hold really well for you. Or if you have a serger that's even easier. Hemp will fray a little if you don't serge or stitch. If you're looking for something tougher than the jersey your joey bunz are made of, I would get hemp fleece or french terry. 3 layers of that are about equal in absorbency to a JB. So if you tri-folded a square, you'd be all set. I would check www.hemptraders.com if you're looking for something cheap. They sell scraps (big scraps!) in packages by the pound I think. Otherwise you can find hemp at www.diapershop.com. Hope that helps!