Martinez hammers are fancy, but they're not a case where form overtakes function. They have a reputation for excellent weighting and every part is replaceable. The colors are functional too in the sense that they make it easy to tell your hammer from someone else's on a job site.
I was just a few hours ago at the National Museum of Denmark, and they had a whole exhibit on ceremonial hammers in their prehistory floor. So there's that, I guess.
