Casio licensed a toymaker to shrink its famous F-91W "terrorist watch" (and various other classic models, including the Databank) to fit on your finger. Matthew Burgos at Designboom writes that the Casio Watch Ring Collection is to be found in vending machines and toy stores in Japan–which is to say if you want one in the West, your best bet is likely eBay or Zenmarket. — Read the rest
