I have one block of a Mariner's Compass (not paper-pieced) that I made in a class more than 20 years ago. I take it out every now and then thinking I might finish the other three blocks, but I no longer have the same fabric. Then I have a bunch of string-pieced blocks that I add to now and again until I'll have enough for a top. And I have a full-sized paper-pieced top for which I haven't been able to decide what type of borders should go on it. At least I know I'll never run out of stuff to do.