I Need This Human Sling Shot Slip N Slide Immediately

I need this fucking thing right now. It literally looks like the most fun in the world. This is better than "The Blob" from Heavyweights. And it's like one of the smartest contraptions anyone has ever come up with. These kids have to had gone to a college where you need at least a 1500 (math and verbal) combined to get into. Your run of the mill bros are never going to come up with a contraption like this. Well fucking done. I need this thing though, like in my backyard right the fuck now. Free t-shirts for life for the person who gets it for me.