I had to post this one.
When Mondial in Italy, built, some 6 years ago, the first Space Roller, i was checking all fancy fairs for it's first time to be seen at them. This is my favoured "toy". For me, no body shaker can be "rough" enough. This one is close to what i would call a real big experience.
Some advises if once you are interested for a trial. Take all out of your pockets first, never climb on one when drunk. The experience is what I would call "real hardcore".
And be prepared to be just anywhere, in any position your body can go to and allways ignoring, where, why and how.
Another shot of this "toy" is here : http://www.pbase.com/image/30198134