Watch this space for updates.
We also got the rubik's snake which is a chain of prisms that can be turned 360 degrees along one plane and twisted into various interesting shapes. An interesting toy which doesn't seem to be as much available as one would like it to be considering it is also a great one for stress relieving.
I wouldn't mind having one at my desk....this or the Bucky ball...instead of having a stress ball.
The three by three yet needs to be mastered.