Infinite Money glitch on Halo 3 forge?

[soccer.ninja]

I've heard about it, and was wondering how is it done?
I'm attempting to forge something, and im not even 1/4 done, but im already halfway done with my money

so im looking towards this glitch
how does it work, and how do you do it?

 

[Yeahbabe]

http://www.youtube.com/watch?v=v-K56H_dNdM