For about $US20, this tiny HoverDrone will hover and flash its little lights. And then the dog will eat it.
Sorry, it's inevitable, as proven in the ThinkGeek demo video below.
ThinkGeek is billing this as the smallest hovering device they've ever sold, so there's that too. Requires a handful of AA's and the controller has the ability to control two drones at once. [ThinkGeek via DVICE]