Well then, make a troll with some flaming gauntlets of speed!
The rules are just guidelines. The rules for magic even moreso. If you want something "official", there's the Amulet of Mighty Fists from the DMG.
Or just make it up...
Flaming Gauntlets of Speed
These flaming rawhide handwraps provide the wearer with a +2 Enhancement Bonus to attack and damage rolls with unarmed attacks and natural weapons. They also deal an additional 1d6 points of Fire damage on a successful hit.
When making a full attack action with an unarmed strike or natural weapon, the wielder may make one additional attack at his highest attack bonus. This does not stack with haste.
Moderate transmutation; CL10th; Craft Wondrous Item, Greater Magic Fang, Flame Strike, Haste ; price 72,000gp (actually more, but who's counting?)
Later!
Gruns