A fun physics based "weapon":
The Magno-Bola shoots a magnetic grapple with a big mass on the other of a chain end, if the grapple attaches to a ship the mass is tied to that ship and its inertia will mess with that ship's movements until the mass is shot enough to break apart.
A nastier variant is the Magno-Drone, the same assembly but instead of a dumb mass it attaches a gun platform to the target that keeps shooting at the target. The platform is not as heavy and easier to destroy but the gun keeps pelting away until someone bothers to shoot it off.