*spams your deviant art inbox*
Here's a quick way to clean and remove tarnish from any metal jewellery (cheap or expensive, brass or sterling silver).
Toothpaste. Tried and true, checked it out myself (not gel toothpaste, but the stuff like Crest). Use a piece of paper towel with a little bit of toothpaste on it and rub the piece of metal. Take a clean paper towel to wipe it off, and another to rub it. If your paper towel is turning funny colours (bluish gray or black) it's working.
For thing like earring hooks, the easiest way is to squirt out some toothpaste into a container, and to dip the earring hook in so it is covered completely. Se