The Neverending Rickroll
It's easy for someone in your home to interrupt your Chromecast stream and play something of their own, but you can always retake control... right? Well, don't count on it. Analyst Dan Petro has built the Rickmote Controller, a proof-of-concept device that hijacks Google's media stick to play everyone's favorite Rick Astley video (and theoretically, any media) on loop. The Raspberry Pi-based box simply floods the Chromecast with WiFi disconnection requests, kicking the adapter into its setup mode; after that, it's easy for the Rickmote to make its own connection and deliver non-stop '80s pop.
If elected, I will ask Congress to institute the death penalty for this offense against good taste.