No doubt the Schmolke are the end-all-be-all, but I wanted to have a more polished, refined look, so I went with One-10 carbon plugs, which have just a decorative carbon insert under gloss, and are otherwise plain plastic. Pricing is commensurately lower. The gloss sheen suits my bike better than the pure race matte/raw carbon look of the Schmolkes.
ONE-10 Sports | Bar End Plugs