Starfinder: Dead Suns
Idaran Force Training Baton
This looks like a normal tactical baton, except it is much thinner and lighter. The baton has passive nanoengineering such that swinging it hard enough through any atmosphere creates an electromagnetic force.
An Idaran force training baton is a 2nd-level uncategorized basic melee weapon that deals 1d4 bludgeoning damage. The damage from this weapon counts as a force effect when wielded by a character with at least 12 Strength. Note, this does not mean the weapon deals force damage, only that it counts as a force effect for overcoming certain defenses such as incorporeal. It has the operative and powered (capacity 20, usage 1) special properties, it is light bulk, and it costs 400 credits.