Keep in mind that a metal knob will be cold in the colder months, warm (if not darn hot in summer) AND will be a great heat sink for the heat generated by your car's water pipes that are running just below the shifter.
My 2ยข
Larry
PANTERA INTERNATIONAL
A DE TOMASO CAR CLUB
Presents the De Tomaso Forums
The On-Line Meeting Place for De Tomaso Owners and Enthusiasts From Around the World
Clicking on the banner will take you to the sponsor's website.