Somewhere around work, years ago, we bought a full-page sized magnifier for a woman who couldn't see well. Local stationary stores should be able to get it. It was 8-1/2x11, and basically, fresnal design. If you cut one down to size, I'd bet it would fit under the LCD cover (assuming that model has a cover). You'd want the exact center, so only one per sheet. I don't think they were too bad, price wise. I've know I've spent more on a night of drinking (and I gave that up over 15 years ago!)