Here's a pic I snapped of my makeshift "film dolly." It consists of a camera tripod mounted onto a jogger stroller. The great thing about the jogger stroller is the large, inflatable tires that allowed it to roll quite smoothly.
As you can see in the video above, I wanted shots of slow movement in each scene. It was important that the camera was moving, as opposed to a stationary camera zooming in or out, so that it would create a sense of dimensionality and depth. It worked splendidly.
Watch out Ron Howard!