Huh, interesting - the game "Control" released this year has some very similar vibes to this.
These are some posters found in-game, I found them very similar to those Scarfolk ones: https://kotaku.com/i-love-the-posters-found-in-control-18377...
And this quote describes one of the many events from the in-game lore nearly perfectly, I wouldn't be surprised if the writers were inspired by some of it:
"Super-conductive copper ribbons were used during the dance because it was believed that their combination with 400,000 volts and expendable children opened a vortex to an alternate dimension where household items were always on sale and could be purchased for a fraction of the price. Items that were brought back through the vortex, however, risked corruption by dark forces, as witnessed on May 1st 1971 when Scarfolk was overrun by a vast horde of malevolent, sentient food blenders."