The Best Matchstick Trick Ever

What you need:

A matchstick. A cocktail stick will also work, if you fancy a break with tradition
A 10 baht coin
A glass, not much wider than the matchstick (or cocktail stick) is long
A balloon (or a plastic pen, ruler or comb)

What you do:

Stand the coin on its edge, on a handy table.
You need to balance the matchstick (or cocktail stick) on the coin. That could take you a while.
Once you've got everything balanced, turn the glass upside-down and cover the coin and stick with it.
Your challenge now is to get the stick off the coin, without knocking the coin over. You're not allowed to bash the table, touch the glass, or bounce up and down on the floor. (I've slightly given the game away by saying that you need a balloon.)
Blow the balloon up and rub it on your hair/jumper/cat. Now, very carefully, bring the charged side of the balloon up towards the glass. You should see the matchstick start to twitch, and with a deft flick you can tip it off the coin. Alternatively you could use the plastic pen, ruler or comb (but they are not as good as the balloon).

What's going on:

It's another static electricity trick, of course. Rubbing the balloon rubs negatively-charged electrons onto it, so it attracts anything that's positively charged or (more likely) neutral. That includes the glass, coin and matchstick. But the force involved is very small, and only the match is light enough to move.

If you do the trick very slowly, and move the balloon back and forth a little, you should be able to turn the matchstick and control it a little. It looks spookily like there's a length of thread between it and the balloon, but of course there isn't. And you can't be blowing, either - the glass prevents that.