Supreme just got together with Fragment Design to release another bike chain. This one is a little different than the one they released a few months back. The chain appears to be a little lighter and the blue colorway is also new.
The black and red chains will be available at Supreme while the blue chain wil be sold on the Japanese web magazine Honeyee's online store.

These are going to be tough to get your hands on. The other issue is that in a big city a chain like this will draw a lot of attention to your bike. It seems almost counter-intuitive to make a designer bike lock/chain!