Pack is a CIT pack.
You MUST have Optifine or the pack won't work.
Rename all Items in an anvil
Names work for any material of tools from Wood to Netherite.
Sword: Duck Sword
Pickaxe: Duck Pickaxe
Axe: Duck Axe
Shovel: Duck Shovel
For the rubber duck name a Carved Pumpkin and rename it to Duck