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DIY 'Iron Man' arc reactor built from cardboard, phone battery, tuna can

You don't need to spend a lot of money to make a legit Tony Stark costume. Proof: this Redditor's arc reactor made with household trash.


Tony Stark (Robert Downey Jr.) could have saved a lot of money if he'd dug into the trash to build the arc reactor that glows from the center of his chest.


If you're looking for a low-budget Tony Stark costume to don for "Captain America: Civil War," check out this wearable arc reactor posted by Redditor iltl64 over the weekend, made mostly out of garbage from the kitchen trash.

He built this accessory from "Iron Man" last Halloween using cardboard, copper tape, a few surface-mounted LEDs, a cell phone battery, a trimmed-down tuna can for the housing, and some glue to hold it all together.

Impressively, the whole thing only took him five hours to build, which includes the time to learn how to work the LEDs. As you can see, it glows brightly underneath a shirt and supposedly lasts for a few hours on full brightness. He even uses the device as a headlight for his bicycle when he's not fashioning other life-preserving power sources in his industrial complex.