For my current project ive found a way to do/make an effective dolly shot.  Ive also made a "pan device" for ... Pans.  Ive also built a camera rig that allows me to shoot straight down onto a table (think pencil animation).  Ive made these out of lego of course with my web cam (not a heavy dslr).  Being forever ambitious, id like to build a camera crane.  More than once ive wanted to do a tracking frontal or over the shoulder or even a tracking pan but they look terrible as long as the cam is grounded.  Even worse if the shot demands the camera is iver studs (frontal track).

Anyone built a rig like this for a web cam out of lego or others?