Tracking shots

Ive been reading on peoples sites and some places in the forum about people tearing there hair out about tracking shots. Im sure somebody already thought of this but has anybody thought of using a lego train track for a easy smooth tracking shot? Just a thought, sounds like it would work really good. The hardest part would be movie the camera at the right increments for each frame but im sure it wouldnt be a problem to set up markers on a piece of paper or something. Just an idea i guess.