FT-6 Hexagon Enclosure Plug

I am currently enclosing my FT-6 and realized that the Hexagon features in the brackets need to be closed off. I created this part that can be printed and pushed into each of the holes from the back to close them off. I decided to keep it as an individual part instead of one that would fill all of the hexagons on each corner bracket because my next step is to create a part with a place for an LED in the back and possibly use some of them as status lights for the printer. I'm also making one that will be an E-Stop