Are we talking about solid fabrics?? I was once asked to make a quilt out of the sport shirts that had lots of woven holes in it. I would try your best to just stick with t-shirts fabric. Look thru u-tube and you will probably fine some instructions. Lots of us have made them before. I used Pellon featherweight fusible interfacing and fuse it on the t-shirt before cutting it. Please realize they get very heavy the larger you make it.
https://www.google.com/search?q=t-sh...utf-8&oe=utf-8