Old Novelty Alcoholic Toothpaste Ad
Novelty makers back in the day used to sell all sorts of weird gag items like this. In reality this would've been crappy toothpaste you probably wouldn't actually use, but in yester-year there were no internet reviews you could look up to see if it was any good, so people would order stuff like this all the time.
We forget how helpful being able to instantly see reviews are!