Originally Posted by Kooklabell

I know "hippie" congers up the idea of peace signs, and woodstock - all that comes with it. But this couple sounds more like "back to nature", imagination, simple beauty. So, I wouldn't go the peace sign etc. route - I might go more of a somewhat traditional block pattern with colors that they love and colors that symbolize nature. What comes to my mind are southwest colors - sunset in Arizona, Moab and Arches Nat. Park., blues for the ocean (they must love it if serving on a yacht, moss greens.

Just an alternative thought from a flower child :)