My company used to make high end keyboards. Each key had a hall effect chip. The buttons were two color molded, that means each letter went deep into the button. You could wear half the button away and still see a perfect letter. but no more, the cheap membrane keyboards with screen printed buttons made our product uncompetative so we no longer make them. You could check out craft stores in the scrapbooking section. They have tons of letter stickers. You shoul be able to find something that would work. As for a scrap KyBd, The keys may have different mounting posts, so i would check the fit. Actually I think you should use a bunch of different size and color stickers. It would look like those ransom notes using letters from different mags. newspapers. LOL
