If you plan to head out on Halloween as Iron Man this year, you’re going to need an arc reactor to maintain your physiological functions. Luckily, the folks at Adafruit have you covered with their Superhero Power Plant kit.

Designed by Becky Stern, it’s based around the Neopixel Ring and GEMMA, whose circular form factors are perfect for this application. You can use it to channel your inner Tony Stark, or simply sport it as a wearable accessory.


For a scrappier, more DIY arc reactor, you can also check out our own Eric Weinhoffer’s build here. He made his using a lot of pieces he had laying around his shop.

Now all you need to do it built that suit…