Manayunk Cleaners in Philadelphia has been testing delivery of customers' clothing via its own drone (a converted four-blade DJI Phantom quadcopter originally used for aerial photography), guided by GPS. Said one bemused customer, "I was wondering what the hell that was, to be honest." So far, the payload is limited to a shirt or towel, to be picked off the hovering aircraft by the customer, but owner Harout Vartanian hopes to buy a bigger drone soon. Agence France-Presse news service reported an even bolder drone program in August: delivering beer to music festival-goers in South Africa. The director of the Oppikoppi festival in Limpopo province attested to the drone's success. A reveler places an order by cellphone, which marks the location, and the drone is dispatched to lower the beer by parachute — usually in the midst of a cheering crowd.