You could cut them apart and alternate them with some pinwheel groupings or D4P. Since they are not square you will need to build out the pieced blocks to a rectangle. Log cabins would be cool too... or a mixture of all three.
I just bought a bolt of Loralie's Diva Faries, a large center panel. So I'll be in the same boat, thinking of a cool way to frame it. I love her characters!