Bathsheba Grossman makes geometric art that might inspire your weird statues, magic items, or even dungeon levels.
There's a lot of interesting stuff on the site. I really like the one pictured above. It looks to me like something a dying Illithid might have in it's hand and it has its own proper name, the Noom.
This would make an intriguing set of dungeon sub-planes:
Combined, the two make a solid cube. But how would you keep track of that map!?
How about this:
"At right is a 3" carving of Antichron, in Indian aventurine. It was done by an expert Chinese jade carver . . . It's something of a museum piece -- the carver did it, I think, mainly to prove it was possible. "
I think spinning it will make something happen . . .