I'm in for 15 now, may increase depending on time and fabrics...I have been working on a charm quilt with green fabrics for over a year and it is more difficult to find greens than I expected...2 inch squares and only about half way there....one of those lifetime endeavors...estimated will need about 350 different greens...not even sure there are that many in existence...alternating with a background color so that helped make it possible...it may end up a twin size instead of full/qn depending on my patience...this swap is much more doable....thanks for coordinating.