Oh SusieQOH: Yes, you do want to know because they are fun also. Mind you doing strings is a little bit easier. Crumbs are your smallest pieces and of course that is subjective. I just went and got my flimsy and measured, a lot of my pieces are 3" x 2" or 1" by at the most 4". Crumbs embrace every shape but mine are almost all straight edges, I am still young at sewing so not really confident to use curves but I have tried to put in diagonals. I was given a bunch of scraps and last Christmas I was recovering from the flu. I had been working on a BOM and was afraid to continue with it as I knew I really didn't have too many brain cells active soooo, I just started putting these scraps together with nothing much in mind until I had a handful of squares and realized I should/could actually do something with them. I trimmed them to 6 1/2", used a small green and white check for sashing (1"finished) with a darker cornerstone. I have been very surprised at the response I have had, everyone likes it. I am going to try (again) to post pictures. I need to learn to do this. If you have any more questions I am happy to try to answer.