NeoPixel Rings

These are well dimensioned copies of the NeoPixel rings that Adafruit sells:

The Jewel: https://www.adafruit.com/products/2226
12 Pixel: https://www.adafruit.com/products/1643
16 Pixel: https://www.adafruit.com/products/1463
24 Pixel: https://www.adafruit.com/products/1586
60 Pixel: https://www.adafruit.com/products/1768

I needed these for proper sizing of related features inside of Autodesk Inventor but I thought they might prove useful for other modelers.