Seriously this time... Measure the shirts designs(length and width of designs) so you will know the maximum inches that the blocks need to be. I like to have a least and inch or so of t-shirt left on the outside of the design. I would sketch out a block arrangement for the size of quilt you want to make. If you are able to cut you designs to be all one size then a simple layout like I did would work fine. If there aren't all the same size you can add extra that you have cut off another shirt to make them come out the same size. There are other options, you could probable find numerous photo on this site showing different designs.
I used Pellon light weight fusible non-woven interfacing #906F for the back side of the shits to keep them from stretching and make it easy to cut with a rotary cutter.
Originally Posted by pmintpat
I have a bag of my son's t-shirts waiting for me to get brave enough to cut into them. What do you suggest? I have a few books with instructions. Just can't get started.