Oh I love that -- planned scrappy or not!!
Someone once gave me this "pattern" for a scrappy quilt or I saw it on TV or whatever -- but it stuck in my mind:
Cut your scraps into squares (any size you want). Put all squares into a paper bag and shake up. Pull one square out (without looking!) and then pull another out (don't look!) and sew together. Continue in this fashion and make your 9 patch or 12 patch or whatever and presto -- you have a scrappy quilt!!