Originally Posted by Facerolling
There are ideally 3 Methods to get custom weapons to work.
Method 1.
You need to modify the item.dbc if you want the weapons to be enchantable and be able to be used for special attacks.
Method 2.
If you are not confident with dbc editing a must more simple solution is to modify a pre-existing weapon (Worn Shortsword for example) to your custom weapon, the bag icon will still be the worn shortsword, but the world model it uses will be the one you selected.
It will also be able to be used for special attacks.
Method 3.
Zoho Sheet - Online Spreadsheets These are unused ENTRY IDs, they are in the DBC already so they can't be locked out, just modify one that has the same type as a weapon you require.