Flame Burst Gauntlets (3.5e Equipment)
From D&D Wiki
Flame Burst Gauntlets: This gauntlet causes any metallic weapon held to gain the properties of a +1 flaming weapon. In addition, a Flame Burst Gauntlet can be used itself as a +1 flaming gauntlet. Up to three times per day, the wearer of a Flame Burst Gauntlet can discharge a cone of fire out to 30 feet as a 7th-level caster. This cone of fire does 7d6 points of fire damage (Reflex DC 10 + 1/2 character level + Cha modifier for half damage).