Ann Makosinski, a second-year student at the University of British Columbia, invented The Hollow Flashlight as well as the e-Drink. This has gotten her recognized as she appeared on The Tonight Show Staring Jimmy Fallon and more recently it was announced that she made the 2017 Forbes 30 Under 30 list.
Makosinski Hallow Flashlight converts body heat into electricity to power an LED lightbulb. She later developed the e-Drink, a mug that uses thermoelectric generators to harness excess heat from coffee to power a phone or music device.
Source: CTV News