Recently i found a need to sand some small parts of a project with my Random Orbit Sander. They were too small to clamp down and my sander would just throw them out from under it. I just clamped the ROS upside down in my leg vise and held the small piece on the rotating pad. This doesn’t work as aggressively as usual because your hand cannot hold the piece as firmly as it would be if it were clamped or had more mass.
-- Ni faru ion el ligno!