I ran into Mario Cesari at a market in Florence, Italy today (I'm in town to speak at the Museums and the Web conference). He's a metalworker who produces beautiful pieces that are really to my taste (I bought a weird, bat-like brooch from him). There was a lot more I was tempted by, especially the little, finger-length machete pen-knives. He's got an Etsy storefront with a good selection of his work. Having handled it and bought some of it, I can affirm that the workmanship and aesthetics of these things are beyond reproach.
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.