this reminds me of one I saw in an ad years ago. It was a tire inflator that ran off a car engine. You pulled a spark plug and screwed it in the hole. It filled the tire from the cylinder. You probably don't need to be told what ended up inside the tire but you didn't want to be smoking when you checked the tire pressure.
I doubt they were on the market for long.
Geez, we must be about the same age. I remember that add. Dad thought it bunk right off the bat.
