They're helping fund Makini, a wind power startup. Instead of capturing air the way standard static turbines do with a single prop, their Airborne Wind Turbine (AWT) kite wing captures the constant flow of air found at altitude significantly higher than a turbine.
Uniform, a British brand communications agency, has rigged up a crazy gumball machine that gets activated whenever anyone follows them on Twitter-sending a gumball careening down a long and winding chute, coming to rest in the agency's studio, where workers presumably fight over it (or maybe not). In the meantime, the agency @replies you with a link to a video of the machine in action (though not, sadly, featuring footage of your particular gumball).