Before I retired I was asked to make 3 T-Shirt quilts and I said only if you pay me what it is worth. I added up all the materials, thread, etc. then added my labor. I used what I was getting paid as a Librarian at the time, then showed him the cost. At first he said no, then his mother spoke up and told him he was getting a bargain. He paid my $300 per quilt. This was back in early 1990's.