Forget a message in a bottle, how about your own water vortex!? This simple, step-by-step video shows you how to 'weld' two plastic bottle caps together so you have a tight, dry seal for your very own home water vortex. You'll need a heating element, a non-stick pan, some 2 liter plastic bottles and several extra plastic bottle caps. Now you can hold a vortex in your very own hand.
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