Radio Controlled Skydiving
The giant RC drop plane is impressive enough but the fully controllable skydivers are the icing on the cake. Servos control the arms and legs to control turns and the rate of descent just like real skydivers do. You can see them live at FlightFest July 9th to 12th at Furey Field in Malvern Ohio. The annual gathering attracts over 3000 RC enthusiasts.
There are a few companies making them with prices ranging from 175 to 250 dollars for a jumper with chute. High performance chutes are available as are replacement parts that won't cost an arm and a leg. An arm is just 15 dollars.
Video: Guys having lots of fun at 'Flight Test'