I had a project that I wanted to use some old glass insulators that I have and I wanted to be able to attach them easily. So I designed a simple threaded post that will thread into them. I made it hollow so that I can put a bolt threw it so that it can be attached to something. I made a quick base to show how it could be used.
Taz 6 (KT-PR0041NA)
Translucent - Clear 0.118" PLA (RM-PE0001)
Adafruit NeoPixel 24 LED Ring (1586)