I have done 2 T-Shirt quilts. I find them time consuming but not hard. I have looked at videos on-line to get ideas on how they are done. This is one I like:
https://www.youtube.com/watch?v=fW6vlC-qr4Q. I have a friend that was willing to let me use her iron press. Boy, was that a time saver. Have fun with it and would love to see the finished quilts when done.