From The Heroes of Might and Magic III wiki

Artifacts equipped in these slots give varying bonuses, though they are seldom very powerful. The artifacts equipped in this slot are:

• Still Eye of the Dragon
• Quiet Eye of the Dragon
• Diplomat's Ring
• Ring of the Wayfarer
• Equestrian Gloves
• Ring of Conjuring
• Ring of Vitality
• Ring of Life
• Ring of Infinite Gems
• Eversmoking Ring of Sulfur
• Ring of the Magi Note: Is only in the Shadow of Death expansion.