Just to add more ideas for projectile weapons:
Poison needles:
While this weapon does minimal physical damage, its damage mainly depends on the potency of its poison. Those who specialize in alchemy would be able to produce poisonous potions and can equip the poison on the throwing needles. You throw the needle like a frisbee, although you grasp it with index and middle finger. The poison damage depends on how good you are with alchemy.
Throwing daggers/stars:
Thieves/Martial arties might enjoy this weapon if they are specialized in martial arts, but need a ranged weapon.
