Played around with Tinkercad and designed a port cover for it. It could be resized to cover other slots as well. Like Apple's port covers, it comes in to parts, the actual plug and the plate that holds it in place.
Thank you!
The comm slot cover is like this:
https://www.ebay.com/itm/131697769343
Though the dimensions of the plastic plate for the comm slot is 1.5” x 4/5”.
I just got a Performa 6400/180 (my dream Mac back in 96) off of ebay. It actually shipped in a Tandy 1000 box! At any rate, it’s in really good shape except for two broken parts and a missing port cover.
The two front bezel snaps were broken, the ones you need to press at the bottom to lift the...