Multi Frame Bike

I have seen a bicycle around town that has multi frames…stacked on top of eachother sort of. 3 frames so 3 people could ride all welded together with one on the top to make a very unique tandem bicycle. I havent seen this around but i want to make one and am looking for either a picture of this type of thing, or even better, plans to make one of these unique machines. If you have any idea at all of what im talking about please oh please send me a link or some sort of thing to pictures or plans to make this.

Thanks Again
Cole Chapman

Check out the links here: Chopper bike links
It’ll take some digging to find a picture of the type of bike you describe, but somewhere in the above links or linked from one of those pages will be a picture of a similar bike.