Popcorn Joint to 1/2" NPT adapter

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:5024751.

A simple adapter to connect a popcorn joint arm to a 1/2" NPT fitting. This allows you use a cheap cast iron floor flange as a solid, sturdy, freestanding base.

EDIT: Added a NPT-to-female-popcorn version in case your popcorn joint arm goes the other way.