Reloading tool organizers
BXA tool holder rack
Collet racks
Test indicator holder
Control panel handles
Chuck cradle
Mill table parts tray
I wouldn't be without my 3d printer.
All modeled using Inventor Pro and/or Alibre Design Pro. I used Inventor for 10 years, then switched to Alibre Pro a year ago.
Alibre Design Pro is damn near as good as Inventor, but cheaper and a one time purchase.
My Multifix/Drehblitz hybrid design, modeled with Alibre. It has a 36 spline wheel for 10 degree toolpost position increments.