This instructable is going to show how to make your own cardboard fire hydrant step by step using 123D Catch.
What you need:
123D Catch, which is software made by Autodesk that you can download as an app. (http://www.123dapp.com/catch)
Meshmixer, another Autodesk program that is used to clean up your catch. (http://www.meshmixer.com/)
123D Make, also free software by Autodesk. (http://www.123dapp.com/make)
One sheet of cardboard (18"x24")