I would also be interested in finding out if anyone knows any solutions
to this.  I have one cage that came with an owner surrender that has a
little bit of rust on the top of it.  (the bars are all coated with white
stuff, I'm too sleepy to remember what it's called...) it would be nice
to figure out how to make it look nice again so I can use it as a spare.
 
Melissa
[Posted in FML issue 4138]