Hello,
There is a smithing hammer called the Imcando hammer. This hammer is possible to wield. Its possible to obtain with mining ores. You first need to do a qeust. And then you can start mining the ore(Barronite shards). Its only not on Zaros.
Is it possible to put the hammer in a store? Achievment or voting store?
For more information, i got a link for osrs wiki: https://oldschool.runescape.wiki/w/Imcando_hammer
Thanks