[capnrefsmmat]

You can actually do it with a pulsed laser (hook up a laser diode to a function generator), a stationary mirror, and a photovoltaic cell. Hook up the function generator and the photovoltaic cell to an oscilloscope, mount the mirror a suitably long distance away, and you can actually see the timing difference between laser pulse and detection at the photovoltaic cell. Vary the distance and you can subtract out the delays in detection and such.

I did this as an experiment in a junior physics lab last semester. It felt like cheating. All you needed was twenty feet of space.