I have a
number of brass freight cars that make "brass" noise
Tough one. If any are
boxcars with doors that open you might try stuffing them with
memory foam (removable if doesn't work) or similar. Other
types of cars, I'm at a loss!
--
Jon Miller
For me time stopped in 1941
Digitrax Chief/Zephyr systems, JMRI User
SPROG User
NMRA Life member #2623
Member SFRH&MS