Recently completed this for a Glasgow-based musician. It's called figurehead and uses non-newtonian fluid in a vibrating speaker to create a little sea for a boat to sail around in!

Would appreciate it if you checked it out.

Youtube:
Jonnie Common - 'Figurehead' (Official) - YouTube (http://www.youtube.com/watch?v=ZhN92EJTYtU&feature=youtu.be)

Vimeo:
Jonnie Common - 'Figurehead' (Official) on Vimeo