Step 4: Attaching Bundles to LEDs
To be honest, you could probably buy plastic booties , but I just used electrical and gaff tape instead.
Essentially, take a fiber optic fiber bundle and hold it over the LED. Make sure it lights up well. Add gaff tape to each bundle and attach it to the LED and fabric (use gaff first, it sticks well to fabric, especially cotton). Go over it with some electrical tape to cover the light, and them some gaff again to make it green. Do this for all the bundles.