[maxmsp] 16 channel rubberband controller

You know, I spent about 10 minutes day-dreaming about different ways 
that this could happen, but your question is a little too open-ended to 
provide concrete answers without conjecture.  You should have a look at 
sensorwiki.org to get an idea of different types of sensing available, 
and maybe check out the ITP physical computing pages.

Good luck with your mousetrap.

AB