Clive Roddy's Etsy store has a number of beautiful landscape rings made from stacked thicknesses of laser-cut birch, which you can mix and match -- there are houses, trees and mountains (there's also an acrylic tsunami). They're $24 each and ship from the UK.
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.