Diamond Pick-Axe

Indestructible (Effects that say "destroy" don't destroy this Equipment.)
Equipped creature gets +1/+1 and has "Whenever this creature attacks, create a Treasure token." (It's an artifact with "{T}, Sacrifice this token: Add one mana of any color.")
Equip {2}

Ruby Medallion

Red spells you cast cost {1} less to cast.

Sol Ring

Fire Diamond

This artifact enters tapped.
{T}: Add {R}.

Mountain

Arcane Signet

{T}: Add one mana of any color in your commander's color identity.