I couldn't find my picture of the one I made, but all of my kids want one now. I did use very thin fusible interfacing on the backside of the fabric before I cut out my t-shirts. My son is really into cars and racing. The parts I wanted to save were various sizes. Instead of using sashing, I bought a variety of Nascar, etc. racing type fabrics and put them around each block until I had all blocks the same size. That meant that not all my strips were the same size. Some were pretty large, so I just put fabric on one side or on the bottom. I arranged them in a pleasing manner and put them together. He was in his mid-30s when I gave it to him and it is still his favorite several years later. Sleeps with it every night. Not sure if I should be honored or embarrassed! LOL I guess it's ok with his wife 'cause she likes it too.
Hope this gave you some more ideas.