What the suggestion is(plugin, rules update, idea you think could work, etc.): SteathBoy, Idea/Plugin (I don't know if it is a plugin yet.)
Why we should have it: It is an item throughout fallout games, it could make you have a feeling of being invisible.
My version: Use the watch and shift+mouse2 and you can be invisible for 30 seconds at the price of the watch, and you can only use it every 5 minutes.