Betsy and I often challenge each other..all in good fun. One will give the other "something", a pile of 9 patches, some HST's....maybe a new chicken print, scraps from something. They aren't idle gifts. You gotta rise to the challenge...of course! This was one such challenge..but we agreed before hand to make HTS-2.5" finished, mostly lights and darks. No set number, just sew those 3" squares together, split them into 2 HST's one for me and one for her. So that we both had identical "blocks" to work with...LOL. No set pattern, no size limit. This all took place several years back and as a result of this wall quilt, I went on to piece my Triangle Mania in scrappy HST's...I showed it back in Oct. I believe. This is my quilt and is 30" X 30" square. I'm quite pleased with it, but not always with Betsy's "lights"...LOL...which range from medium all the way to dark I think..*G* She, on the other hand, finds my lights to "light"...but that just makes for more fun when we do a project together.