The Kuku impenetrable metal ball puzzle(s)

Imported from the UK, this precision aluminum puzzle is made by the same folks who make the Isis Puzzle. And, like the Isis, it is a puzzle within puzzle. If you manage to open the Kuku, inside you will find a token that can be registered online to play a game -- which itself is a puzzle requiring you to decode a picture clue to come up with a 10 digit code. Should you solve this second puzzle, you are admitted to a special vault area where you will have 5 minutes to explore and perhaps lay claim cash or other prizes. Clever idea.

Here is the link to more info on the Kuku Impenetrable Metal Ball Puzzle.

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