Design a circuit that you can turn into a CrackleBox. A crackle box is similar to Circuit Bending, a creative/destructive use for old electronics.
Some design thoughts:
Here are a few links to get you thinking
http://www.crackle.org/index.php
http://www.crackle.org/CrackleBox.htm
http://www.flickr.com/photos/tags/cracklebox/
http://www.flickr.com/photos/fibra/198675042/in/set-72157594259456576/
http://www.flickr.com/photos/owen_armour/381110348/
http://www.flickr.com/photos/corkyburger/9307079/
http://www.flickr.com/photos/84221353@N00/391103091/
http://www.flickr.com/photos/breedx/sets/72157600057210301/
http://www.flickr.com/photos/polyphake/380049269/
http://www.flickr.com/photos/guero/221106057/
http://www.flickr.com/photos/guero/224770810/in/photostream/