MAGIC TRICK - FREE

Effect :

You take out a box of matches and go to light your cigarette or candle but when you open them they are all used.
You then say I hate that when people put used matches back in the box, oh sorry it was me I hate it when I do that. You then proceed to take out the used match and strike it and it lights. You can have them already stashed in the dirty ashtray and take one out and then light your cigarette or candle.

Secret:

All you have to do to make it look like it is a used match is dip the match in black ink, and then wait for it to dry. Then dip it in ash and it will look like a used match but when you strike it the match will light like any normal match.