Other demag methods - buy/rent an appropriate auto degauss system both AC and DC, passing through high amperage AC coil, heating above the Curie point of the material, banging it heavily and repeatedly with a blunt instrument. Bound to be others but these are the easiest to carry out.
If your item's L/D ratio is low, then increase it with unmagnetised but magnetic extension pieces when you pass it through the coil.
I think that one lesson I have learned in my experience of demag problems is to know asmuch as possible about the item you are dealing with - material and its magnetic properties (if possible its hysteresis curve), how its been constructed/processed/handled. Gather together as much info as you can to help choose the optimum method.
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