"Big Brother" Strikes Again

That's why the dual action sander idea is best. When vibrator is off, the plate looks perfectly normal to the human eye. I didn't actually mean to use a real dual action sander, just something that will move the plate up and down and sideways at a high rate of speed making the plate letters/numbers a "blur" to a camera. It only has to move 1/8"-1/4" in each direction to make the letters/numbers blurry.