Cheers Gavin, glad somebody liked Grandpa. If you check out his channel you see some amazing creative stuff (not sure how effective, but entertaining all the same). His trommel was so was awesome, he should have sold it to Todd Hoffman, it had me laughing for frickin ages. LOL :) .
If others read this I must say Grandpa is the role model for the way prospectors should be:
Creative (think totally out of the box guys), Hard case funny, resourseful ( i.e cheap, if you watch his clips, you'll know exactly what i'm talking about) and doing it for the sheer enjoyment and not the money (which sadly most of prospectors forget).