I made one for a friend and kept track of the hours it took me. I took her shopping for the fabric I used in sashing, binding, and the back, and had her pay for that and the batting and thread. There were 32 tshirts, so it ended up rather large. I did quilt it in the ditch on my home machine and added a hanging sleeve just in case. I charged the ridiculously low rate of $10 an hour for a total of $320. I won't do it again as it was boring, but she was very happy with the result. And I ended up with a lot of rags (what was left of the tshirts) which I'm still using today.