There is a place you could get them for Miatas, called the guy to get one for the Elise...he told me that he will sell me the business, but not another set of teeth. So he told me how I could make a set. Had a fun couple of hours making them. Even more attention from people driving around town now.
They wouldnt be crooked if I would drill some holes into the top of the lip and put a few more zip ties in...just got tired and used the existing holes.