Cheers MVC, looking at your suggestions:
1)NO! (Dont have a welder, not going to learn on this one)
2)Could this be done in conjunction with the rocks/bolts idea?
3)I'm thinking some form of chemical is the way i will go
4)I like this idea, perhaps a mix if different bolts, nuts, washers and bearing balls might help out, at least to prep for chemical treatment by removing the top layer.
