YouTuber builds device that shoots masks right onto people's faces – CNET
Pan, whom you may know from MythBusters: The Search, used the pistol-style grip from a spray paint can, a CO2 canister’s solenoid valve and parts from a car’s brake line to construct his launcher. After the mask is fired, bola weights wrap around the target’s head.
After some successful testing at home, he took it into the field. Here, he found that the wind and “debatably shoddy craftsmanship” limited its practical real-world application.