You may notice some if they're all in the same workshop, synchronisation may occur,
especially close together, or in bundles.
Synchronisation can be tested by the amount of rebound on the hammer.
If you were ever a smiths workshop, you may have noticed that the blacksmith always dings twice,
as they're very careful to make sure they have the right hammer for the job.
Choosing the wrong one could be fatal as some may have noticed here, especially in the hot weather.
Treat them well with respect, or they may fly off the handle!