Mouse Trap by Steve Hollifield & Tri City Magic

Here is a cool effect that plays well for all audiences.

Effect: You place 6 cards face down on the table. All the backs showing are red back cards.
A Spectator is given a tiny mouse and told to place the mouse on any card.
They can change their mind at any time.
When they make their final decision you then pick up the other 5 cards.
When you show the faces other cards they are all different from the face than they placed the mouse on.
The mouse is sitting on the one card that is different.

Easy to do and you get everything needed to do the effect.

You receive the custom cards, the tiny mouse and complete instructions. There can be two different outcomes depending on what card they place the mouse on.  They get the cheese or they get trap.