Stumbled over some pictures of Canary Islands Lanzarotes new art projekt http://suche.aol.de/aol/image?q=Lanzarote+Unterwassermuseum&v_t=keyword_rollover
I can imagine an aquarium fishtank in an APA Box with a Gn15 line passing in front of it or through a glass tunnel. A real show stopper.
Have Fun
Juergen