This is the third video in our series of maker profiles shot as part of the Red Bull Creation competition. Here, you’ll meet the puckish tinkerers behind Virginia-based North Street Labs, who favor the type of project that “makes you laugh, makes you scared, or make you laugh at the person who’s scared,” to quote one member. They’ve built everything from a motorized hammock to a game that replicates the g-forces of a Top Fuel Dragster. Warning: Dizzying footage ahead.