So for fun in my spare time I designed this system for the DJI Phantom 3. It is a Jag Bomb pouring aerial delivery system.
In short ive outfitted a 3d printed frame that I designed with receivers, servos and a servo winch. There are 3d printed carriages to hold the liquor bottle and energy drink. Hit a couple servos the drink pours into a "Jag Cub" and is then lowered down to the consumer. Just for fun, obviously not a million dollar idea....

See link below if interested in the video of it in action!
https://youtu.be/kBoakZjFs7M