Titanium toothbrush anyone?

CSIRO are hosting a design challenge to design a useful titanium product to help show off the new Additive Manufacturing processes popping up all over the globe. If your between the age of 18 and 25 then get your thinking caps on as they have a shiny new Macbook up for grabs (which unfortunately is not made of Titanium). I wonder if they have seen this cool Titanium bike lock?

More information on their website:

http://www.csiro.au/org/TitaniumChallenge2011.html