I'm not participating in this swap but I have done MANY in the past.....Can't do enough to stress the 5 inch rule...I've had to stop and remeasure many of my squares to weed out those too small (even by several threads) or too large and resize...this is very time consuming (and irritating). Also be sure to consider the 1/4 inch seam allowance...after this is sewn, will enough of the picture remain for identification? Also, My personal preference is to starch the fabric to get a better cut........These are fun to make and the children love them.... most of mine have gone to charity.
As I use all of my squares you may find me back here in the future...