
I haven't known any RP community that wasn't willing to handwave unique looking weapons as replicas of the original. After all, they are legendary weapons. Most of the time, anyway. Weaponcrafters copying their style for rich men or just for themselves (and the bragging rights) isn't far fetched.
There's also a second approach: that special weapon you are holding is actually special, but it isn't the original or what the item name implies it to be. For example, you could have a paladin pretending his Curtana is actually an 'original' sword made of elemental ice crystals that he calls Bob. Just as long as you don't claim to be using the Curtana, you should be fine. Or a 'secret copy of the original with all its power intanct that a Wizard created somewhere'. That would be awful, too.
I don't personally like using those OOCly high profile weapon models in-character, but I can't think of any good reason for why I don't.
There's also a second approach: that special weapon you are holding is actually special, but it isn't the original or what the item name implies it to be. For example, you could have a paladin pretending his Curtana is actually an 'original' sword made of elemental ice crystals that he calls Bob. Just as long as you don't claim to be using the Curtana, you should be fine. Or a 'secret copy of the original with all its power intanct that a Wizard created somewhere'. That would be awful, too.
I don't personally like using those OOCly high profile weapon models in-character, but I can't think of any good reason for why I don't.