When I first saw your question, I thought of Bill, @Ace-Garageguy and his using real sheet fiberglass to do things such as this......... Maybe he'll join in and offer some advice.
I think I read somewhere (sorry, this is a bit off topic....) that the best way to stop a charging elephant is to charge Back at them! They don't know how to react to that.......
That may work for a lot of people, too..
That's the best one..... and the more 'attractive' engine, too!
Didn't they used to call the cammer engine the 'shotgun' back in the day? I guess they were hunting Elephants.......