SRD:Dwarven Thrower

Dwarven Thrower: This weapon commonly functions as a ''+2 warhammer. ''In the hands of a dwarf, the warhammer gains an additional +1 enhancement bonus (for a total enhancement bonus of +3) and gains the returning special ability. It can be hurled with a 30-foot range increment. When hurled, it deals an extra 2d8 points of damage against giants or an extra 1d8 points of damage against any other target.

Moderate evocation; CL 10th; Craft Magical Arms and Armor, creator must be a dwarf of at least 10th level; Price 60,312 gp; Cost 30,312 gp + 2,400 XP.