Yes, I have done that, the first time was when I made my eldest daughter's quilt.(in 2000) I ended up with a queen for her and a queen for me and at 80 more 6 1/2 blocks yet to deal with. Last year I made a pretty Pansy block with purples yellows and greens, there are a dozen 12 1/2 in blocks in a bag in the garage I can't decide if I want a whole quilt or a wall hanging or...... so it sits. There at least 3 more collections of blocks that I made and I loved the fabric at the time and am not sure what I want to do with them. I'm glad to see that I am not the only one that does this!!! Someday I will finish all these collections of blocks!!