I have taken blocks that I didn't care for and used them on the side of bags or for placemats or mugrugs, Sometimes they look better in a different setting. If you really can't stand them and don't want to ever see them again give them to a thrift store or take them to a quilt guild meeting and offer them for free. Someone will grab them and find a use for them. Or cut them up in smaller sections and use them in a crazy quilt, or make potholders. There is a use for nearly every block.