Not trying to take away from WC Lathe Werks, as I love their custom engraving options! Here are a few pics to give you an idea what they look like. We have two colors and two sizes also.
All knobs are bead blasted with super course sand, then anodized. This creates a really cool texture that lasts. Personally, i like the silver small size in the car.
We haven't gotten an Auto yet to know for sure what thread they are. Hoping its like the Subaru Auto with a 10x1.25 threads.