The randomizer gun was a invention of a mad scientist.
If you point it at something, it automatically scans the target. If you then pull the trigger the target changed into a radom thing that is inanimate. The only rule was that that the first letter of the target and the first letter of the Thing are the same. For example: If you hit a cow, the cow could become a car or a cheese. But If the cow has a Name like Berta than the targets name was Not cow but Berta and she could become bed or a single boob (yes the gun also counts Body parts as inanimate but they became disembodied). It gave also a second Trigger to change the target back. But the target must be unharmed.
After a few tests, he quickly wrote instructions. Then, using another invention, he sent it as a package to a random person.