Bonnie Hunter of Quiltville has some beautiful blue scrap quilts. They don't have any applique but I think you could easily incorporate some. Here are links to a couple of her blue scrappys. I love all of these and have a blue scrap quilt on my to do list. It is just deciding what I want to make with those blues I am saving.
http://quiltville.com/mbh/myblueheaven%20013.jpg
http://quiltville.com/blueridgebeautyoutside.jpg
http://quiltville.com/bedquilts/epiphanystars2.jpg
It is easy to spend hours looking at her quilts and any of her designs can easily be done in a blue theme.