A member vendor sold these several years ago, they look good on the 914 engine cover. I have two: one on the OEM cover and painted the car color, and a second on a GT engine cover and painted black.
Here's a pic for you WTB ad... and the link to the original Engman 3rd brake light ad. These sold out several years ago...
http://www.914world.com/bbs2/index.php?sho...;hl=brake+light