Take a large glass, place a piece of yummy in it (cheese, apple, what ever..) and something the mouse can climb up the side with, like a stick taped to the side of the glass.
Place in the open.
Mouse comes to take a look, sees the goodies,
smells the goodies, climbs the twig and tumbles into the large glass, that is too smooth to climb out of.
The mouse, then looks rather silly as it wonders how to get out of this one, while eating said goodie -after all, you just put the poor creature in this predicament, the least you can do is let it have the yummy treat. Right?
And here's a picture, in case you thought this was my idea.
http://www.boingboing.net/200710231937.jpg
I won't tell you how we do things in Amsterdam against mouse infestations..., it would get me banned