I put together a small version of the many Covid Key’s I see out there. A simple design to let you open doors or touch buttons without using your hands. Helps to avoid the spread of germs. Nothing fancy but hope it helps. I made samples out of 1/8" MDF, 1/4" MDF and then I made 1/8" Acrylic and bonded two of them together. I think the MDF works fine, but not sure about cleaning it. I supposed you could coat it with something waterproof. The Acrylic seems like something you could easily clean.
Tried to make it as small as I could but still useful.
Note the drawing is attached but supper small link near the bottom of the last picture for some reason.