This is half of the fruits of the Doctor Who 3-D Model Making Kit. The rest of it is a Dalek and a Cyberman's head. Notice that you can see the inside of the Tardis
This is marked as for 9 years and up, so it's pretty impressive if you can build it with a bare minimum of adult help at the age of not quite eight and a half.
The aim of it is to get the little surfer dude around the circuit automatically:
And here it is in action, with his mother's piano playing in the background:
A pleasant weekend is being had by all!