Ooooh...I'm so jealous!!! I would also suggest using the "search" tool above and look up "Batiks" or "Batik quilts" to get some ideas. There are some gorgeous ones done by members on the board!! I'm actually looking at two today that I think might be relatively easy...both were found on the Hoffman site some time ago, so I'm not sure if they are still available for free.
They are : "Desert Nine-Patch" and "Jungle Rain" both by Karen Montgomery and would lend themselves nicely to a variety of batik fabrics within one quilt.