On the set of the Doritos shoot we needed a magical smoke plum to transform a rather sleazy looking guy(played by Adam Duncan) into a more attractive man with Doritos shorts(also played by Adam.) In this gif you can see how Jonny Greenwald got the effect of a decent stream of fog, as opposed to the rather weak puffs the fog machine put out on it’s own. Basically a bag was filmed up with the fog then released all at once.