Those fabrics would make a cute Stacked Coins quilt.
http://www.modabakeshop.com/2009/02/...aby-quilt.html
I've made a couple of these, one with a cream background and one with a blue background. Blue, pink, yellow, peach, or a soft green are possibilities.
The pinwheel quilt is adorable too, and you could definitely change the background as long as there's enough contrast between it and the prints.