If you're looking for a minimalist way to bike pool to work, or just tyring to figure out your next circus act, check out the Tandem Unicycle. Watch the creators attempt to ride it, and see if you can resist making one for yourself just so you can test you and your BFF's balance.
It's tough to ride, but DIY instructions are available at Corbin's Treehouse so you can build one yourself and give it a shot with someone you think can stay upright.
And if you didn't want to wear a helmet before, please do so with this one...
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