Plastic/polymer drivers?
Recently saw the pics for the Callaway AI Smoke, and thought they had built a driver with a plastic/polymer body.
I realised that wasn't the case on closer inspection, but wondering if anything like that has been done? Googling just brings up toy clubs for toddlers.
USGA rules don't seem to restrict material composition in this case, so I'd be intrigued to know of there's any history or research in this space?
Feels like plastics have come a long way in recent years so brittleness would be less of a factor; I'd be surprised if it hasn't been tried.