Jaybird patterns that use fat quarters and I believe some of them only require 6 FQ, but you would also have to add a background and would only make a baby quilt but here are some of her patterns....I have just about all her patterns....working on getting the one's I'm missing...She has mini patterns also...I know Ballerina uses 6FQ plus background makes a 36x42", Tiny Dancer makes a quilt 36x56". She includes templates if you don't have the rulers she uses...I've made the Ballerina, and am working on making the Carnival. Here's her site
http://www.jaybirdquilts.com/p/patterns.html you could adapt some of her patterns to use FQ's.