Gremlins love to pitch things at your eyes. Wear safety goggles. Back up our battleskies!" poster
The pattern
This still is filed under Us-versus-them positioning.
Define
The buyer is invited into a side. The product is what we use. The named other is what we refuse.
Mechanism
Identity contrast. Choosing the offer is choosing a group. The out-group does as much work as the claim.
Verdict
The category is crowded
Why it works
It uses humor and a popular wartime myth (gremlins) to make a boring safety message memorable and engaging, avoiding a nagging or patronizing tone.
Steal this when
You need to enforce compliance with a mundane rule and want to avoid sounding boring or authoritative.