Build status hardware

Teamcity has a buildbunny plugin for for integration with a Nabaztag (I wouldn't have recommended a Nabaztag some time ago but they are saved now).

alt text http://www.agimatec.de/blog/wp-content/uploads/2008/07/nabaztag-speech.jpg

If you are a team of Linux geeks, you may prefer the tux droid plugin.

_{(source: waltercedric.com)}

Or maybe you could just use a computer display with the team-piazza plugin (for something "a la" mozilla, see http://isthetreegreen.com/)

alt text http://team-piazza.googlecode.com/svn/wiki/screenshot-success.png

For everything else (lava lamps, ambient orb, build wallboard, LCD monitor, etc), I guess you'll need some hacking. I'd like to see lava lamp support as this is my preferred extreme feedback device (it's funny to race against the wax to fix the build). So if you go this way, let me know :)

Maybe you could try an Ambient Orb as suggested by this article.
_{(source: ambientdevices.com)}