Quoted from Stones:
Ripley's Believe it or not.....the magnet by the shrunken head is cool....
The one by the idol is even cooler.
But I gotta go with Sega's Galaxy from 1973.
The 'Space Patrol' feature is a moving magnet that slowly transports the ball in an arc across the mid-playfield from the left kick-out hole to the right one.