Are you familiar with the pattern "Jack's Chain"? It is the one which uses small squares to make nine patches which are then arranged in a circular pattern very similar to a Double Wedding Ring. The nine patches are joined with triangles inbetween, so the entire quilt is constructed with Y seams, but it's a gorgeous quilt. It is the last pattern in the book "101 Nine Patch Quilts", by Marti Michell.