On a different board, I saw a picture this morning of a neat 2 color/2 block quilt - 9 patch + snowball. Put together it is quite striking.
http://www.quilterscache.com/S/Snowb...atchBlock.html
Scroll down to to the third picture on the blog to see how it came out in a two color scheme:
http://ppebble.blogspot.com/2010/04/...-and-kids.html (not my blog, nor do I have an affiliation with them).
Cheers, K