Make hood functional?

ya man a rotozip and a dremel and some sand paper and you can make anything you want.

I am thinking of that kind of idea but having the airbreather attached to the carb then just a hole to clear the breather......as opposed to something that is sealed only when the hood is closed. The image I have is quite simple in theory but I don't know if it will end up so simple. I must have seen a picture of what I am thinking it seems quite fresh in my memory, yes you can do this and there are many possibilities, even with steel boxes already fabbed can be adapted easily....cookie tins....whatever.