Copper Helmet is a Legends of Idleon item: dropped by 2 monsters, recipe, used in 5 recipes.

Copper Helmet | Idleon Toolbox

Copper_Helmet

Equip_the_Copper_Helmet_and_Copper_Platebody

Copper_Quipment

Smelt down 2 Ores into 1 Bar at the Forge. Smelting will take 15 per Bar using Forge Slot 1.

Copper_Ore

Top_Hat

Militia_Helm

Birthday_Hat

Gold_Helmet

Thief_Hood

There's something disturbing about how these beans have bones. Not as disturbing as how they also have eyeballs and walk around, but still disturbing anyway.