I found these aluminum alloy Start/Stop trim buttons on Amazon. They look great for the $13.99 price and are just stick-ons. Amazon.com: Push Start Stop Button Cover Trim for 2015-2021 Dodge Challenger Dodge RAM 1500 Dodge Charger, Aluminum Alloy, Blue : Automotive
Completely disabling traction control on my 2010 R/T requires the use of the key (2-part process) so I don't use the button (and I'm not fond of red).