Ideas of questionable quality

[NOOT]

Using select items on a cloaking device changes / adds an animation or sound effect when you use it in hand to activate / deactivate it.

A Floor Tile adds the Show Goblin tile transition.
An Instrument adds a soundbyte of that instrument.
A Telecrystal adds the Telesci warp animation.
A Butt plays a loud Fart.
A Buttbomb adds a loud fart and explosion effect.
A Wrestling Mask adds a maecho man sound effect.