QuilterMomma, at first, I thought about more CW colors, but wanted to use all the scraps. I'm just staying away from the bright whites I have in there. I like your dark color to set them off idea. I have some dark green that may be enough to do that with. Since I bought fabric for the other 2, I'd better stick with my stash on the scrappy.
Fraew... LOL ... yes they are very addicting!
Losie, your 4.5" could be the center of a mug rug... just a thought