I knew an absolute idiot who got a PhD from the Media Lab for putting a motion sensor and servo motor in a toy bear so it waved at you when a coworker wanted to talk to you and coworkers could tell when you were in your office. A fucking PhD.
The MIT underwater robotics team - backed by defense contractors giving them access to all the latest and greatest toys - has lost to high school teams making their robots out of tupperware containers and bilge pumps.