An easy pattern that would look great in blues and whites is Yellow Brick Road. You only need 12 fat quarters to make a decent lap size quilt. More if you want a larger quilt. But it is easy to cut and easy to piece. I love Weeping Willow china pattern too. I have since I was a little girl. A blue and white quilt is on my bucket list. Should be easy to find enough blue and white fabrics to do whatever you want. Have fun looking for them and show us a photo when it's done!