Also. How many would be interested in vinyl masks to do the same as the Magic Marker Mod?

I would. Even though I've already made a piece of cut plastic for the job (my template for that is the thing I sent to you in the mail), I like the idea of having a vinyl mask that goes against the lens for that purpose. Instead of the float-free piece of plastic that I'm using now.

Would it be something that adheres lightly to the inside of the lens like those static-cling vinyl window stickers?

I was wondering if you'd ever get around to trying that.