Let's get physical.

OK, if this isn't one of the coolest LEGO creations ever, then I'm not a genocidal maniac wearing an eyepatch (and I am).

No, your eyes are not deceiving you, these are LEGO minifigs animated in real time by lckelpete, AKAPeter Salter.

These exercising figs are apparently powered by a single LEGO Power Functions motor.  This one gets five stars.

Dr. S.