In 1989, the Wimpy restaurant chain in the UK ran a Ghostbusters 2 promotion, giving you the chance to get fries, a burger, a slime-shake and your very own ghost-in-a-can for just £1.99. I was lucky enough to have a Wimpy in my hometown and I remember being really excited about getting my own ghost, but all these years later, I can’t recall what was actually in the can. A bit of internet research suggests it was nothing more than a puff of green smoke.
I believe this promotion ran for other chains worldwide (Burger King for the US?) – did you get to open one of these cans? What was inside?