Concept
A magician is haunted by the sounds of a pack of playing cards. Everything he touches and manipulates sounds like a deck of cards.
He pours water in a cup and it sounds like dropping cards on a surface.
He writes on a paper and it sounds like dealing cards.
The moans of his girlfriend sound like riffling a deck.
Breaking something sounds like ripping a card.
Punching something sounds like dropping the deck.
Method Idea
You can have 2 small speakers attached to the inside of each of your sleeves. These speakers are connected to a couple of buttons placed about your body, underneath your clothing. When these buttons are pushed, they make a certain noise through the speaker.
There are speakers than can make a pretty loud noise.
So when you touch different objects, you can make them sound like other objects and SUDDENLY, you have a new genre of effects: SOUND EFFECTS. Not as in SFX, but as in Sound Transposition, Sound Change, Sound Teleportation and so on.