US drone delivery service Flirtey on Monday announced that its self-piloting flying machines have whisked flu medicine, hot food and more from 7-Eleven convenience stores to customers' homes. The Nevada-based company boasted of being the first drone service to complete regular commercial deliveries to residences in this country, having completed 77 such autonomous missions. “We have now successfully completed the first month of routine commercial drone deliveries to customer homes in partnership with 7-Eleven,” Flirtey chief executive Matthew Sweeny said in a release.