I've been thinking about this one for a long time, and I have no doubt that others have been thinking about it for a long time too. There's a very interesting one that UC Berkeley Students made a while back. The page below has been online since at least 2006. Yes, if you had this at Casitas..........

http://bleex.me.berkeley.edu/calibot.htm

I thought a lot about trying to get something like this made, and went so far as to email with the professor in the link above, but I've figured out over the years that my skills at making lures are ... poor at best.

Someday one of the mad scientist garage guys will crack this one. I'll be in line to buy it.