Only 5000 editions of each were made, and they retail for $400 each. But it cost almost exactly as much to research, design and create the boxes and their contents, meaning they're unlikely to turn a profit.

Blackwood tells JSOnline: "We basically have to sell out to break even. Jack, obviously, is the key. He was willing to say, 'These things need to exist, so it's okay if it takes us 10 years to make our money back. It's hard to imagine anyone else would do something like this."