Perhaps you've seen larger versions of the iJoy Ride from Human Touch, the "world leader in effortless excercise equipment" (which is like starvation gorging?); they're called mechanical bulls. And while the bulls are excellent for drunk female balancing workouts, the iJoy Ride is "effectively toning three muscle groups." We didn't even know we had three muscle groups down there! Thanks to Soup lover Ejaworsk for this one.