I think if I had any kind of Sims modding experience I'd make a lot of shitpost mods for the Sims. I don't know what would be the hardest part about making a mod like this.

I imagine making custom moodlets is probably well documented, modelling a miniature door might be a little difficult considering I don't know what modders use to make custom objects (Blender?), and there might already be a crawling animation in the game for some other object.

I feel like the teleport feature might be difficult. I know you can teleport with objects or using console commands but I am not sure if there would be a way to pick a static location or how that would work with different maps.