5050/WS2812 LED Light Diffuser for Choker

I recently made a simple LED choker from fabric covered [WS2811 addressable LED strip](http://www.aliexpress.com/item/5M-DC5V-Pixel-RGB-dream-color-led-strip-WS2811IC-300pcs-IC-300pcs-SMD5050-led-indoor-Non/682624810.html). The lights each consist of very harsh tiny points of light, so I printed a little light pipe diffuser cap to put on the top of each little 5050-style RGB LED to diffuse the light and carry it though the fabric lining to the outside. "Style 4" in the OpenSCAD file is the style