Willow Leahy stared at the tower of green plastic cups and flexed her fingers like a piano player preparing to tackle “Flight of the Bumblebee.” “This is called speed stacking,” she said. “Now, watch ...

Editor’s note: This segment was rebroadcast on Sept. 30, 2025. Click here for that audio. In the early 2000s, thousands of U.S. schools had their students race the clock to stack cups in gym class.

— Sitting in front of Ayaan Cheema were 12 green cups. After the start signal by his teacher, Michael Donovan, Ayaan began stacking those cups. Ayaan, a kindergartner at St. James Elementary, built ...

Why drink Joe from a normal mug when you can tease coworkers with this hilarious gravity-defying fused three-cup stack day after day, and get more coffee per serving while you’re at it? Who knows, ...