Hello!! My mom actually helped me make a tshirt quilt out of most of my college shirts .... I did it a little un traditionally than most done and it actually turned into one HUGE applique thing that got put on hold when I found out I was expecting LOL
If you iron fusible interfacing to the back of your cotton shirts it makes them a little stiffer and they are 100 times easier to sew :-)
If you need any more help, just PM me :-)
GOOD LUCK!!!