Motorized Roller Skates How Can I Build A Roller Coaster In My Backyard?

How can I build a roller coaster in my backyard? - motorized roller skates

I want to build a rollercoaster in my garden, I hope, especially with wood. Are not motorized, gravity will do well to run.

I just need something to use to scare the **** my children when they misbehave.

Where do I get tickets and more information about this type of project?