Two Bay Area hackerspaces are conducting a robot-delivered cupcake contest. Clearly drones will be the winning technology. Fortunately, there's already a website for that.
From Ace Monster Toys, an Oakland-based makerspace:
In the interests of inter-hackerspace collaboration, Ace Monster Toys is building a robot to deliver delicious delicacies to Noisebridge. We understand Noisebridge has a robot too, and we are preparing to defend ourselves against any robot-delivered treats it may attempt to deliver to our space.
Whichever hackerspace delivers a tasty snack to the other first is the more awesome hackerspace, forever.
Any technology can be used to control the robot, although some kind of cellular radio is the most likely option.
Use of public transportation to carry the robot over the Bay Bridge is allowed.
A human minder can accompany the robot, but can't control it.
No exploding cupcakes.