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:

Overview

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.

The Rules

• 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.