MFT flush bench dog (magnetic)

MFT flush bench dog designed to stop small items from falling through the MFT holes. 
Fits 20mm chamfered dog holes. 

A M8 nut helps to pull out the plug with a magnet. 
Otherwise the plug can be pushed from below or you can use some painter's tape.

Two Three versions are available: 
• Hex pocket for optional M8 nut (with some hot glue)
• Hex pocket with plug for a M8 nut, 5 mm distance to the top, keeping the saw blade off
• Solid plug

 Don't hesitate to post your makes and comments.

Here is very very simple plug for non chamfered holes (Festool MFT):