[Eliot Ness]

I found a set of brushes very similar to these from one of the tool dealers that set-up at larger car shows:

http://www.harborfreight.com/5-pc-airbrush-cleaning-brushes-68155.html


You could maybe follow up with pipe cleaners and Deoxit for the final cleaning/protection.

If the corrosion is very bad you might want to run some tightly rolled up emery paper through it first, or try these stanless/brass brushes if the small ones aren't too big:

http://www.harborfreight.com/6-piece-tube-brush-set-61923.html