Magnetic parts tray skirt

I use these cheap 4" / 100mm magnetic trays for parts and they work really well. Except small pieces will get stuck to the magnet on the underside. I designed two versions of a skirt to keep debris away from the magnet.

The first is a very basic shield which goes up to the tray lip. You have to glue it in place if you want it to stay with the tray when you lift it.

The second version is shorter, grips the rubber covering of the magnet snugly and stays on by itself.