Overview
Mark throws an epic birthday party for a deserving teen, complete with record-breaking devil's toothpaste experiment - the first of its kind.
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2 - 1Acid vs. Lava Destruction Test January 01, 2026 -
2 - 2Backyard Squirrel Obstacle Course January 01, 2026 -
2 - 3World's Largest Devil's Toothpaste January 01, 2026 -
2 - 4Beating Carnival Scams With Science January 01, 2026 -
2 - 5My Domino Robot Broke A World Record January 01, 2026 -
2 - 6Engineers vs. Extreme Hide & Seek January 01, 2026 -
2 - 7My Experience Building The Mars Rover January 01, 2026