How To Build A Cardboard Roller Coaster

In this instructable simple useful coasters are made out of free materials generally.
How to build a cardboard roller coaster. Hold the piece as shown and make slight marks where it is not bordered by any cardboard. Cut out four more pieces of 4 by 12 centimeter. They should be about 1 8cm apart. Draw your track design on the two pieces of corrugated cardboard.
Good way to recylce the cardboard. Making cheap cardboard coasters. I have lots of papers on hand and the cardboard is gathered from used boxes available just about everywhere. Cut two small pieces as wide as your marks and 2cm long.
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