by Farlsborough » Feb 12th, '07, 01:45
No, it won't work I'm afraid! It's haematite (which rings a vague bell as being some kind of ore rather than a metal), what you're looking for is neodymium, "neo", or "rare earth" magnets. They are quite difficult to shape into anything other than a rod or a block without splitting and splintering; PK rings are actually a very good price for what they are!
If you are truly skint though, the other tenable alternative is to buy a small neodynium cube or disk which will cost you a matter of pence and superglue/araldite it to a cheap ring on the inside; obviously you then have to stop people seeing a clear shot of the inside of that hand though. If you made it a steel ring the magnet would stay there of it's own accord actually... this might be better, you could then subtly dettach it if people wanted a close look, or you could dettach it and use it to keep a coin hidden through a bottle label or something...