I wanted to try to warped my loom back to front so I could double thread my reed and I needed a raddle to try it. I found a blog where someone showed how to do it and my husband made me one. I am using ponytail holders to keep the threads in place.
I have not had a chance to really try it but I think it will work fine. It only costed maybe less than a dollar and everything was in his stash of nails & wood. It saved me @ $50 to $60.