Basically this is a question for flash in the pan or one of the other petrol heads. I want to make a ring flash using the air pan from a car. On this basis rather than spend days trawling the scrap yards do any of you know of a vehicle with the old style centre fit for carbs about twelve inch diameter.I can then use the netto source The idea being take off lid replace with flourescant light diffuser, foil on the inside and replace intake with box tube off extractor to fit flash head. Pack between lens and body with foam. Ive only been able to find biscuit tin types up to now.Cheers for any help