Originally, we thought of buying new ones. Then we realized that we need about 30. Instead of spending money on hinges, we decided to replace only the rusty ones. For the ones that look salvageable, we got this:
We couldn't find brushed nickel, so we hoped satin nickel would do. Tonight, hubby spray-painted the first batch of hinges.
It looks pretty good, doesn't it? Yay for spray-painting!