overhauled copper buckets at long last, thanks to BucketLib's custom buckets.

copper buckets can be used for milking (configurable)

copper buckets melt after carrying lava or other super-heated fluids. (configurable)

copper buckets do not set you on fire when melting from lava (configurable).

BucketLib is embedded (jar-in-jar) and does not require a separate download.