LED Rocket
This is an LED rocket design I made as Christmas gifts for family. It has an integrated Arduino driving a couple of LEDs and uses an accelerometer to vary the colors of the lights with the direction of "flight". It also displays a light show when not flown for a few seconds.
The rocket comes in top/bottom and an electronics palette with a 9V battery holder. I typically print the palette with supports within the pocket the Arduino slides into.
The Arduino source code is available here: https://github.com/erichcr80/Smart-Rocket
The original OnShape document is here: https://cad.onshape.com/documents/df1463dc8f914260b68c3cf8/w/9c76c30104b34627b618ef78
I can include a pin layout for the Arduino if anyone is interested.