Geyser Tube

If you must conduct crackpot experiments with mints and fizzy pop you might as well do them properly

If you must conduct crackpot experiments with mints and fizzy pop you might as well do them properly. How? By loading Mentos into this bottle-top contraption and pulling the pin. As the sweeties react with the soda a powerful geyser blasts up to 30ft in the air. Whoosh!

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