[pandamonium]

Love the ball track idea. I feel that the small semi circle is an important part of the clue. Seeing as we are engineers lets analyze this component. There is no structural value also this curve does not remove enough material to be considered for cost purposes; actually forming the curve depending on the technique could actually cost more money. Concluding that this was necessary for another reason quite possibly this proves a ball game.

Extended Thought: 2010 is a World cup year for soccer (foot ball) much like last year was NASA Themed. This component could be given to teams to be used to control a soccer ball. Instead of a ball rack used upside down near to the ground it could control a ball.