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18 Volt Battery Pack

A low-cost solution to an expensive battery problem. The combination of parallel and series wiring delivers a compact electrical source that is both powerful and long lasting. Design by Mechaprint Prototyping

Multiple packs of this design were used to power firing boxes in the 2018 Royal Forest Firework show. Rear more about the show and the people behind it here:

Here are some videos of past Royal Forest Firework Shows:

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Rainbow Dash Costume

Wings and Glowing Ears for Serenity’s Rainbow Dash costume.


  • Printed at 200 microns with Light Blue & Black PLA
  • 2x 2032 Coin Batteries
  • 2x Adafruit Diffused 5mm Slow Fade Flashing RGB LEDs

Digital Base Models: