oh yes there is a use for 2.5" squares as i am in the process of cutting 300 of them now for a baby quilt. then i will need to cut some for a snowball quilt. too bad strip piecing won't work here.
there is a seller on ebay who is selling 4000 2.5" squares (multiple colors) for around $40.00. i have seriously been considering whether to buy them or not. i am already working on 2 postage stamp quilts (20,000 - 1.5" squares) so my fascination with cutting things small is waning. lol