Fake Rock Background

[fender120993]

Can someone help me in making one of these?
I know you need grout and styrofoam and what not, but i need some instructions.
And how much would it cost after your all done?

 

[ruthie_bee]

I'd be interested in learning how to do this too!

 

[revoltkid]

HERE
even though they arnt for geckos
they are awesome
rob has allot of cool vids