I'm not advocating it, but I've had good luck with steering hard almost to lock, giving it some throttle so the car turns sharp and as you feel the rear start to come around, apply a lot of brake and a lot more throttle to break traction fully. Then you can start letting off the brake and let the rear carry itself around.
It's super easy to do 'em on gravel and wet asphalt. But like Thomas said, it's hard on stuff. Just make sure there's nothing that's going to be near the car, no potholes, no speed bumps, no small animals and children, you know ;-)
1994 Super Coupe ('93 5.0L swap), 1990 Tbird 3.8L, 1982 Honda CB900F, 1972 F-100 SportCustom 4x4, 1970 Chevy Custom Camper / 20