Boss-Specific Items with Crafting

In a nutshell, these items would only be obtainable from bosses, and would have special abilities/animations/ possibly enchantments and would relate to the boss you got it from. For example, the Corrupted Cauldron could drop a Mini Cauldron- an artifact hat would spawn in one of the Pink Mini Slimes that the Corrupted Cauldron boss throws at you during the fight. It would classify as a pet, and enchantments would work for it i.e Beast Surge. Another idea, for the Redstone Monstrosity, could be a Two-Handed Hammer with Redstone abilities infused, like a massive shockwave when used and increased attack-speed when health got low. My last idea, incorporating all of the previous, would be crafting these weapons.You would get parts from the bosses, mini-bosses, and enemies that would be combined to craft each weapon. This encourages play and exploration.