Wedi - now what do I do with it?

The Wedi (weedy) board is here! so I am considering the possibilities . . . I got two 30" x 36" pieces . . . I have been thinking a lot about shapes of things that hang on the wall; what is appealing to people. We are accustomed to squares and rectangles. Our eye also recognizes certain other shapes such as an oval or a guitar so that's acceptable for a wall hanging. But do I want to cut up the Wedi (just because I can?) Or just mosaic a large square? I have been wanting to do something in three repetitive shapes that fit together as a whole. But I don't want it to be complicated to hang. So it still needs to be one unit but appear to be three. Hmmmmmm.