I just went up to our computer lab and observed one of our postgrads demonstrating a ‘digital glove’. It picks up the user’s movements and generates music from them. Next week he (and it) are going to a ‘show and tell’ organised by BCS MidWales: http://midwales.bcs.org/show-and-tell-events/
I am always really impressed by the range of things people do for fun.
In addition to the fun this is also a really nice way to meet people and enhance your CV.