I have a whole box of 2.5" squares cut from scraps, separated by lights, darks, and brights. I planned to make a bunch of 4-patches but had not chosen a pattern. The 2012 issue of Quilt Almanac has a pattern called Cherry Jubilee that I might use. Can't find a pic of it online but it's a square in a square setting where the center square is a dark/light 4-patch. Their version is all brights but most of my scraps are Civil War repro's or subdued colors.
Also, look at Bonnie Hunter's website quiltville.com. She has wonderful patterns. I'm making the Patches and Pinwheels out of scraps also.
Anita