Libster, thank you for mentioning fabric size. Reminder, we use FAT EIGHTHs not EIGHTHs. They are NOT interchangeable for the purpose of this swap. A FAT EIGHTH is approximately 11x18, depending upon the shrinkage once your fabric is washed. It may end up being up to an inch smaller. (Imagine washing a single yard if fabric and cutting it into 8 equally sized pieces.). If your fabric shrinks A LOT so your F8s would be smaller than that, please cut pieces 11x18 inches and keep the smaller pieces that result for yourself. If you absolutely must use Eighths (9x22) inches, please let me know in advance. Most of us REALLY prefer F8s although some of us don't mind either way.