Have you seen the Piece o' Cake book "Quilts with a Spin"?
There is a quilt in there that popped into my mind right away when you said polka dots. It is called "Everyday Best". Here is a link to a page on their website that has a picture of that quilt.
http://www.pieceocake.com/ClassInfo/beckyclasses.html
(I am not brave enough to try this. LOL! But I want one! I am saving up scraps of polka dots so someday I am going to make an ALL polka dot quilt. Someday being the key word there.)