Please let me know if you have more ideas!
we were just talking about a vintage projector. Other than that, I think it could fit in this deck. any graffiti decals, blood, dirt on the wall, rust or similar decals. some broken electrical wires, bones, skulls, discarded clothing (suits, shoes, gloves, etc.), chemicals, gas masks, badges, flu mask, bandages. ladders, I don't know anymore. just what I thought :D