Love the scrappy version..I've been putting scrap strips on adding machine paper-with no real plan in mind, just to do mindless sewing....I think this might be a way to set them......maybe.....I'll add it to my idea list!

Bonnie Hunter has this in her free patterns.

http://quiltville.blogspot.com/2005/06/string-x.html

Aha! That was the one that inspired mine, but I couldn't find it. Thank you!