The BigDog is a pretty badass bicycle monster truck that you can create with your own two hands. The BigDog is made out of bicycle wheels and what appear to be lawn chairs. The BigDog can hold up to six people, weighs around 600 pounds and is even able to roll over a car.
The BigDog actually looks like it would be a pretty sweet ride in that you could easily make all the annoying cars swiftly get out of your way. I love how it's made from bicycle wheels -- what an amazing DIY project for long summer days.