I almost ALWAYS make to make blocks normally I make a couple "practice blocks" and I use the same fabrics as I will use in the quilt. What I do with these blocks is add them to the backing. I put a "border" around them so when I trim the backing and batting I am not cutting into the blocks. It not only gets rid of the blocks that would otherwise be known as orphans but it also means less fabric needed for the backing which saves me money! :)