A Double Wedding Ring Quilt would be beautiful. A light colored fabric for the background w/bright colors for the Wedding Rings. I bought a book called: "Rings That Bind" by Cheryl Phillips & Linda Pysto. I ordered the plastic stencils as well though their site at a discount price. Check out this video of how it is made. It looks easy, but have not tried it yet.
http://www.hgtv.com/video/wedding-ri...deo/index.html