Large Speed Funnel

I needed a funnel to fill oil into my cars engines. So - simply go to a hardware shop and buy one, right? Boooooring!Why buy something when you can make or even overengineer something? This is a large speed funnel with six additional air channels to let the air out when you are filling the funnel. The small opening has an outer diameter of Ø38mm. It should match the oil filler port of many engines. Of course you can use this funnel for all other opportunities - in my case, I am just using it for