Regarding yesterdays conversation, Alfa had those in the late '60's early '70's I believe, they are domed on bottom to sit over the transmission tunnel I seem to recall. We had to cut them to sit flat to the Pantera console. Further I just searched Amazon & ebay I found a few that would work w/a bit of modification:
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.