Six Delhi teenagers- Amaira, Kartikeya Shastri, Zoey Singh, Shayan Sethi, Jovika Nagpal, and Nevan Roy- from The Shri Ram School created eco-friendly clay cup coolers for government classrooms under Project Vaayu. Inspired by a visit during a heatwave, they used recycled kulhads (earthen cups), scrap wood, and metal to design low-cost, power-light systems that lower temperatures by 6-10°C.