The Steampunk Segway aka Legway, has some trouble making turns, according to the creator, but if you can’t afford a real Segway, this is a cheap DIY alternative. Of course you’ll have to provide all of the power yourself. At least that makes it eco-friendly.
If you want to try your hand at making one, head over to Instructables and make your own Legway. Then prepare to feel the burn. Before you know it, you’ll be saving up for the real deal. Because pedal power is for the birds.