Originally Posted by
PaperPrincess
Off the top of my head, I would say you need stabilizer. You might be able to get away without if you use regular cotton quilting fabric as sashing to control the edges of the blocks. However, since it sounds like you have extra, why not piece a small sample without it & quilt it and see how it goes.
Before I learned the 'proper way" to stabilize tee shirts for quilts, I cut tee shirt logos and used cotton for sashing. In sewing the sashing to the tee shirt block, I placed the sashing on top and the tee shirt on the bottom close to the feed dogs. This was a good way of keeping the stretching down to a minimum. The first quilt, I hand quilted around the sashing (SITD) and did some tying within the blocks. That quilt is still going strong after 17 years. This last quilt I did (a UFO from about that same time) was done all tied. It's the softest most comfy quilt around! One tee shirt quilt that I stabilized had to be quilted by a LAer because of the size and weight.