First of all it depends on how big your backyard is. If it's very small, then you really can't do anything. If you don't even have one, then you obviously can't do anything. If you have a medium backyard, get one of those K'Nex Kits on how to build a roller coaster and you should be done within two hours (that's how long it takes for me to build them) If you have a large backyard, maybe even bigger than your house, then you can build a small one. If you have a celebrity's backyard, you can do just about anything. You cannot, however, build one like Phineas and Ferb. I am sorry.
Ok. You got a backyard big enough for a baby roller coaster. This rollercoaster will not be one of those fancy rollercoasters you see at Universal or Disney. It will be a baby one. Get a track. Then a shopping cart. Whee!
You can make a roller coaster for a craft project using Popsicle sticks, toothpicks, and paper towel rolls. Other materials you can use include cardboard, glue, plastic straws, tape, staples, and poster board.
for a marble roller coaster, you can use rolled construction papaer for the towers, paper or cardboard for the tracks, and also two wires for the track.
some matirials you use are screws, wood and metal
You can use k'nex parts, icoaster parts, LEGO parts, popsicle sticks, toothpicks, clay, paper, cardboard, metal strips, wood, and bottles cut in half!
Mainly metal but the old ones might be wood. I'm talking about tracks. The cars/carts I'm not sure.
Blood, sweat, and tears, my friend.
you need a lot of talent, land and money.
steel
you can build a roller coaster, ride it, and print it on the website that is attached as a related link.
Its HARD for little kids and teenagers. Nobody can build won but roller coaster engieners
First you build a roller coaster, thean build a building over the roller coaster, its that simple.
Yes, Amelia Earhart built a roller coaster in her own backyard made up of one long log and a wagon.
Click on Giga coaster.
See the straight coaster picture and curve ones? Click on them to build a piece. Its the same as the turn tracks and straights.
£1
They Did It In The First Episode
1904
June 16, 1884
Yes you have to use the cheat for no limits on roller coaster height and then build your roller coaster extremely high (it will take ages) then ride it and you leave earth eventually.
well you need lots of space and money. then a contractor and roller coaster parts.