Slingshot

Slingshots are equippable weapons appearing in and  EarthBound, and are usable by all of the party members in both games. In EarthBound, all of the slingshots miss 18.75% of the time.

Slingshot
The Slingshot ( Slingshot) is one of two equippable items in the game that can be used by any party member, the other one being the Boomerang. The Slingshot increases its user's Offense by 7 when equipped, and can be purchased for $120 on the second floor of the department store of Podunk. It can otherwise be obtained from a present in the second classroom from the right on the second floor of Twinkle Elementary School. Being an item which is obtainable rather early in the game, it is generally considered to provide with pretty poor offense.

In-game description
"A handy weapon, that anyone can USE."