I printed these antlers with a modified version of this STL: https://www.thingiverse.com/thing:519877 I used Hatchbox transparent PLA, 2mm shell, 0% infill, with supports. Printed on a Taz 5.
LEDs are WS2812B chips, controlled with a Teensy 3.1 and the FastLED library.
Headband and a switch/battery connector box were designed by me and also 3D printed.
I really wish i found this project months ago. Would be epic project for EDM outdoor festivals! Maybe next year then :3