Escape Golems from "Frieren: Beyond Journey’s End" as a rare item could be fun.

[Sephi51]

In Frieren there is a Golem in a bottle thats carries you out of a Dungeon. Just looking at the Golems in the Anime carrying someone out looked like fun. Its clearly against the spirit of lethal company to have an Item that gives you guaranteed safety and it doesnt have a place in there. But regardless its a cool idea and just taking the Idea and modifying it could be fun.
There is a teleporter so its not that the function would be completely new, but it would a different variant that could be experimented with.

[BBQ]

it would also be hilarious to hear loud thuds of the golem's footsteps come barreling down the hall