Badges update automatically and link to the resource pack page on MineUniverse.
Hello fellow Poppy enjoyer!
Make sure you either
A. use Optifine with Video Settings > Quality > Custom Items: ON or
B. install the CIT resewn mod
Install the ressource Pack and rename your Mace to "Orlon's Hammer" using an anvil.
Enjoy!
(I made this for fun, the rights for the visuals and names probably lie with Riot games)