Alumagrips - Home
I've seen quite a few 1911's sporting alumagrips. On my short list of pistols to buy is a Dan Wesson CBOB. When I get one, it will sport Deluxe Tactical Thin Lightweight Alumagrips.
Similar to these:
I also know that people are fond of Esmeralda's grips.
Others yet go for VZ grips.
Custom 1911 Grips | Handgun Grips