Quoted from superNoid:curious about this as well
I use static cling on all machines where matching armor is not available. I bought a pack of sheets of cling film, made my own L&R side templates and now just cut out a set for any new pin that arrives. They work great, stick very well, easy to clean. And of course very easy to peel and replace.
I learned about it here, I bought the package I link below…. I believe many people use this in places instead of Mylar. Given how well this works around my flipper buttons, I would try it on the playfield too.
https://www.amazon.com/Grafix-Temporary-Decorations-Acrylic-Surface/dp/B002J6CO9I/ref=sr_1_7