I made the MSQ Summer Camp pattern and really liked how quick and easy it was. It does finish at 8 inches square but that is still ok for your dimensions.
For each block you need one 4 1/2"(un-finished) HST in a standard colour--meaning all the HST's are the same two colours throughout the quilt--, one 2 1/2x4 1/2", two 2 1/2x6 1/2" and one 2 1/2x8 1/2" strips. It is jelly roll friendly and there are lots of different layouts too. There is a free youtube tutorial of it. Here's a pic of mine.