Wow. I want it! Very zen.
DIY instructions: http://www.bhg.com/gardening/landsca...pond-in-a-box/
It's double boxed and secured with bandings. If you go larger just secure more. Most of the water pressure will be pushing out from near the top rim. How large are you going?
You have to sign up for a stupid newsletter to acccess it tho. Oh the fish should get there today, all the other packages I sent out are out for delivery, yours hasn't updated for some reason :/