I make these quite often.
http://www.quiltingboard.com/t-120111-1.htm I use my scraps and scraps donated from others at my guild. This one is a crib size and although I still need to trim some threads, it's ready to go. This was all pieced on used computer paper that would have been shredded. I pieced it all on my vintage Singer 319W and FMQ it on my Janome 9000.