Here's a little something thrown together for a Monk or something. Probably would be added to the class list for Monks, Rogues, and Bards.
Shuriken.
Martial Ranged Weapon
Weight: 1/4 pound
Cost: 2sp
Range: 20/60
Damage: 1
Damage Type: Slashing
Properties:Light, Finesse, Thrown, Glancing*...