> I clipped it onto my LEGO RC car base to make a spy car, and drove it around as far as the USB cable reached from my little Sony VAIO laptop.

Neat. A few years ago I made a wireless version with more modern LEGO car and RPi camera. Great fun to drive around until the latency gets you stuck and you have to pry it from behind the sofa :)

https://www.printables.com/model/343226-lego-42099-raspberry...