Are you one of those people who goes on roller coasters and at the end goes running to the entrance line to ride it all over again?
How about having your own roller coaster on your backyard?

John Ivers is the creator of this backyard rollercoaster for kids, called The Blue Flash.

And if you think this was a one time thing only, think again… because he also made the simpler yet fun Blue Too:

Not to criticize my own parents, they are awesome, but where were these guys when I was a kid?
I mean, they didn’t need to be my parents, but maybe the neighbors parents or something…

Source: TechEBlog