Chevy Sonic Shift Knob

I made this replacement shift knob for my Chevy Sonic. It's designed to fit a collector coin inside for display. The coin space is sized to fit dollar sized coins in a plastic case. The plastic case protects the coin from being scratched or damaged in the shift knob. The threaded insert allows this knob to be printed without supports. I printed mine in PETG to keep it from melting in the hot car during the summer.