OK, I tend to think along the lo-tek, cheap, and easy line. I'm thinking that the overall effect can be had with some well placed black lights and some cheap posters like that Escher one with the lizzard in the 3-D icosahedron and the couple standing on that big mountain. It got me through the 70's.
Worth a try and won't cost that much.
As I tell my Algebra II students: I'm really trying to be more facetious and less sarcastic. Have fun whatever you decide to do.