Expanded Copper
Many players believe that copper in Minecraft deserves more uses, but don't want to stray from the vanilla game mechanics. Expanded Copper mod was created specifically for such fans of the classic style.
This addon expands copper functionality while maintaining harmony with the original game. You'll get new redstone capabilities and decorative blocks that will organically fit into any world.
What the mod adds:
Copper button: Oxidizable buttons with customizable duration
Copper pressure plate: Reacts exclusively to dropped items
Copper trapdoor: Decorative version of the iron trapdoor with oxidation effect
Copper door: Oxidizable analogue of the iron door for decorating entrances
Copper bars: Stylish bars with oxidation effect, giving your world a steampunk atmosphere
Copper lantern: Light source for enlivening mineshafts (comes with copper chains)