Pumpkin Battery

 Pumpkin Battery Mockup Pumpkin Battery

Design & Fabrication by Emily Daniels 2011

This project was made as a useful alternative to lighting jack o’ lanterns with candles or traditional batteries on Halloween. It could also double as a center piece for the fall and is easily made with common household items. After hollowing out the pumpkins, a prepared electrolyte was added to the pots along with coils of two dissimilar metals and wired in sequence to light the LED in the jack o’ lantern. Instructions on how to make it are here.

 Articles & Accolades: Hack a Day, ThinkGeek