Laura sent in a link to "The Radhost Complector" from artist James Ewing. Put simply, it's one of the very best faux occult devices I've ever seen. It works on so many levels, from the design to the use of authentic materials (oak, copper, brass, and citrine), that I instantly fell in love.
"The pointer of the Complector is a shard of citrine quartz suspended in the middle of three spinning brass rings that revolve to show you where you are, or perhaps warn you that you are on the wrong path. The hand beaten spherical brass map is protected by a segmented layer of oak and then encased in a cage of dressed copper and brass. A small covered portal in the Complector' front can be opened in order to check your heading or you can open the top altogether if you are in fear of getting lost in the ether."