Category: Wearables

Unicorn Horn with 3D Printing & NeoPixel LEDs

Searching for a simple costume project to bring your Unikitty or Lady Rainicorn to the next level? 3D print a flexible unicorn horn and illuminate it from within with NeoPixels and a GEMMA M0, GEMMA v1 or GEMMA v2 based microcontroller. Or forget the electronics and use glow in the dark NinjaFlex filament for a green glow with no batteries required.

This is a pretty quick soldering project that is suitable for attentive beginners! Prerequisite guides:

For this project you will need:

Unicorn glamour shots by Andrew Tingle.

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EEG Costume Cap

Make this ambitious costume project for Halloween or cosplay event! Before you begin this ambitious and time-consuming project, complete the following prerequisite guides:

To make this project, you will need:

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Buzzing Mindfulness Bracelet with GEMMA

Build yourself a buzzing bracelet for subtle haptic feedback as time passes! It’s great for reminding yourself to get up and walk away from your desk for a few minutes each hour, or just as a way to have a new awareness of how the perception of passing time varies based on what you’re doing.

You’ll whip up a vibrating motor circuit using a transistor, resistor, and diode, and use GEMMA to control the frequency of vibration in between low-power microcontroller naps. The circuit lives inside a linked leather/rubber bracelet, but you could build it into whatever you please. This project involves some precision soldering, but is otherwise quite easy!

Before you begin, make sure you’ve read the following prerequisite guides:

For this project, you will need:

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Laugh Track Jacket

Bring your own sound FX to the party! Turn a blazer into your own personal theme music machine, foley artist, or comedy audience. Battery-powered speakers in the pockets blast your sound while membrane switches in the pocket and lapel activate the audio.

For this project, you will need:

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Zipper Switch with Conductive Thread

Here’s a fun way to make your clothes more interactive– you can turn a zipper into a switch for activating lights, sounds, and more using stainless steel conductive thread.

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The switch works like a momentary pushbutton. As the zipper pull travels along the teeth, two pads of conductive thread are bridged, momentarily creating an electrical connection.

This connection can be sensed by a microcontroller like FLORA or GEMMA with an activated internal pullup resistor, or be used in place of a push button in circuits like the TV-B-Gone or audio FX boards. Continue reading for the full tutorial.

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Solar Boost Bag


Make your own backup battery and recharge it with the sun! This is an upgrade project to our original Solar Charging Handbag and uses a PowerBoost 500 Basic, a solar lipoly charger, slide switch, and 2000mAh rechargeable battery, all housed in a 3D printed enclosure.

Before you begin, read through the following guides:

For this project, you will need:

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