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 | | A plastic bag filled with water, with some sharp pencils sticking through it.
And no leakage!
Amazingly, this is hardly a trick at all... |
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 | | It's all down to the type of plastic that the bag is made from. You need to find one that's very, very stretchy and that doesn't break when you pull it hard. Most sandwich and freezer bags will do...
Fill it with water, shove a pencil through and hey presto. |
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 | | It works because the plastic stretches around the pencil, sealing the hole!
Good, eh? |
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