This has been suggested before, not so much as new designs for weapons, but the ability to equip current weapons and armor as fashion...for example, a player is wearing exalted DL armor, then equips a set of earthstone armor as fashion...making it look like he's wearing ES. Same general idea for weapons.
I think it would be pretty neat. There have been several really cool looking weapons and armor pieces, it's a shame that they are left to sit in inventories...only taken out to show off in the castle.
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