I just bought a new one by Pam and Nicky Lintott called Jelly Roll Sampler Quilts. It has more than 50 different blocks, all adapted for 2.5" strips. You can make one of the quilts in the book or combine any of the blocks for your own design. I like that...lots of blocks to try out. And I have lots of scraps cut into 2.5" strips.