My mom and 2 of her sisters, as well as me and my sister we all made yo yo's for a wedding present for my cousin. We made thousands, we used scraps etc and then we would meet and mix all of ours together. We then sewed them into squares with no pattern, and then sewed thoses squares into rows etc. We had a great time doing it, I just wish we had sewed it to a backing, it gives the quilt much more stability. We made a king size quilt. I looked really great when it was finished. But like I said I would sew them to a backing.
Hope this helps