I have made four bed size t-shirt quilts. They look better when they are uni-directional. A sash for each block really helps to off set each t-shirt. I used the school colors as sashing for my son's t-shirt quilts. Also, for the stablilizer, be very careful when choosing. The first t-shirt quilt I made, I used an iron on fabric and it made the quilt very heavy, plus gummed up the needle very badly. For the t-shirts that are an irregular size, either cut down to fit the others or fill in with another fabric so the blocks are similar in size. just my 2 cents! Good luck with the quilt
