Yep good project for the winter ;)

I'll have to blow the dust of mine .

It is a school so I would get it sorted quick before the xmas break if you are ordering from there, which incidently is cheaper than buying the component parts at Maplin's. 

And every one said, 'If we only live,
We too will go to sea in a Sieve,---
To the hills of the Chankly Bore!'
Far and few, far and few, Are the lands where the Jumblies live;
Their heads are green, and their hands are blue, And they went to sea in a Sieve.

Edward Lear
http://www.nonsenselit.org/Lear/ns/jumblies.html