Handheld Fireball Prop

You'll need one half of a clear ornament holder. You'll want an ornament holder that is ~80 mm wide.

To make the flames you'll need colored cellophane

To make the fireball light up, you'll need one Circuit Playground Express and one 3.7V LiPo battery. The battery has to be small enough to fit inside the ornament

The tools needed for this project are a heat gun, a hot glue gun, and a 3d printer.

The base will help you hold the fireball in your hand. The case will hold the circuit playground in place

Download the fireball base stl files here: https://drive.google.com/drive/folders/1...

The files come in 3 different sizes, 15mm, 22mm and 28mm width. Choose according to the width of your fingers!

Download cpx-mount-simple from Thingiverse

3D print the fireball holder and circuit playground case using your choice of printer and filament color

It'll take ~1 hour for the parts to print, but in the meantime you can continue onto the next steps!

For the example code and an explanation of how it works, visit the adafruit guide here.

I added additional code (image 2) that will make the lights turn off when the fireball is flipped upside down and vice versa

To learn how to add the flame effect, visit this step in the original guide

Use hot glue instead of glue dots

Also, gluing the fireball base in place will help the fireball be more sturdy

To secure the Circuit Playground, use the case you printed earlier and tape it inside the fireball

To turn the lights on or off, reach in and press the button on the circuit platground

This won't turn the board fully off, so it will still use up the battery! To turn it fully off, disconnect the battery

If the battery dies, you can replace it or charge it using a LiPo battery charger