Here is a funnel I made from sheet metal that I had gotten from the ductwork scraps left over from the HVAC guys as well as the old ducts from the furnace.
It is an upscaled copy of a smaller one I purchased.

It was quite a pain to make this, but it is quality.
This funnel was my second attempt.


I will mainly be using this to transfer gasoline in and out of my gasoline blowtorch.