Abstract Art With Optics?

Who would have thought that with a macro lens, flash, diffraction grating, beam-splitter, lenslet array and calcite that you could do some pretty funky abstract art. What a weird tool.... I think I like it.

Flash off a diffraction grating.
Beamsplitter.
Lenslet array for the wavefront-sensor of the Maui adaptive-optics bench.
Beamsplitter on a post.
Calcite.
My keys.