I have made 5 memory quilts of shirts that belonged to my deceased cousin. There were so many t-shirts that I refused to throw away and lots of scraps, so I made LOTS of string blocks. I STILL had lots of t-shirt parts left over so I cut them into 6 1/2" squares. I appliqued hearts on some of the squares, but I have over 100 squares to deal with. Do I HAVE to put some kind of backing on the squares before sewing them together? Since they will be interspersed with the string blocks, won't that provide enough stability to make a lap quilt? I don't know if I can afford the backing for all the squares!
Thanks for any and all advice.