This is the Rodeo Boy, a device that not only looks like an expensive sex toy, but can probably easily be modded into one. The $772 piece of exercise equipment has six speeds of bucking action to help strengthen and tone the rider's core during 20-minute sessions. Like I said before though: sex toy. I only hope it can support the combined weight of a cowboy AND cowgirl. Plus a couple rodeo clowns.
Keep going for a couple more shots and video demonstration.
Thanks to Mark, who agrees 8 second workouts are the best workouts.