Magic disappearing ink how could we not include this classic in the pocket money section i remember playing this joke on my mum when i was a very annoying wee nipper she didnt find it funny and i missed out on my post tea trio biscuit that day but it still tickles me when i think of it heres how it works pour a little of the ink onto white fabric a shirt or a tablecloth a good one is dads shirt just before he goes to work after a short while it will miraculously disa