Optical fibre fairy wings

A few weeks ago, I thought it would be fun to make some fairy wings as a Halloween costume for Sarita. Of course, they needed to glow :). I've finished adding to optical fibre and LEDs to one of the wings. Here it is showing off a cycling rainbow:

It uses one of these neopixel strips, which I'm controlling with an Arduino mini. That's so I only need a single 5V supply. I thought about an ESP8266 - some sort of remote control would be neat, but this project has already proved sufficiently complicated.

I've coupled the fibres by making an acetal block with 4mm holes to match the spacing of the leds. In this picture it's just held in place with cable ties, but that seems to work OK.

The fibres are 2mm side glowing, and there are 2 per LED. I bought 10m which is going to be just enough.

Now I just have to make the other wing, and figure out how to make it wearable before next weekend. Not sure I'll manage that, but at least I made this video.

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