The Deglon Meeting Knife, designed by Mia Schmallenbach, is a set of sculptural, nested knives (priced, alas, as sculptures, at $600 for the set). The proportions of the four nested knives -- paring knife, carving knife, chef’s knife and filleting knife -- are "determined by the Fibonacci sequence with as its base the average width of a hand."
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.