I searched how to get out dings/dents but it was mostly big dents. My hood has about 10 small dings about the size of a 50 cent piece all over it from the previous owner, i was wondering if there was any easy way to bang these out.

 

If i remember right, some people around her were talking about this thing, someone mentioned using dry ice. Now, that sounds crazy to me, but they said it worked, maybe someone else can give you more information on it.