Adorn yourself with a gorgeous crown that looks like it's made of ice. This crown glows and pulses and twinkles in a magical flurry of lights, completing your Snow Queen costume in a most glorious way. This lightweight, comfortable icicle crown is made of hot glue and cellophane and glows with Adafruit's Pebble Pixel lights embedded inside. The crown is controlled by an Adafruit QT Py Pico and LiPoly BFF, so you can power the lights for hours with a tiny, lightweight lipoly battery.

The BFF also adds onboard battery charging, and there is a clicky on/off switch, so it's easy to turn on and off. Use the free, open source WLED software to control the crown, so you can make animation modes, control brightness, and change colors with your smartphone over a WiFi network. You may easily sync the crown to other costume pieces built with the same setup.

Parts

This project uses a lipoly battery because it's very tiny and packs a punch in terms of power. My crown is set to a fairly low brightness and it runs for hours on this tiny battery. If you plan to wear the crown for more than a couple hours, you may want to pick up 2 batteries so you always have a charged one.

The BFF gives us onboard battery charging for LiPoly batteries, so if you wrap the battery up in lots of tape it'll stay pretty safe. Don't puncture these batteries or get them wet as they can catch fire.

If you're planning to make this for a child, you may want to consider using AAA batteries instead. It's much bulkier and less glamorous to do it this way, but it's definitely safer. Clip the battery pack to their clothing or drop it into a hood.

And here are a few more good things to have on hand for electronics projects:

Additional Materials & Tools

• Low-temp Hot glue gun and LOTS of glue sticks
• Soldering iron & accessories
• Alligator clips
• Flush cutter snips
• Wire strippers
• Iridescent Cellophane gift wrap
• White electrical tape to hide the electronics
• Wig head or hat block
• Gems and sparklies for decoration
• Bridal hair combs