I have been using keyboard sticks but the keyboard sticks that I am usually using have alphabets of other languages on them. You can find them here:
http://www.amazon.com/s/ref=nb_ss_gw?url=search-alias%3Daps&field-keywords=transparent+stick+keyboard&x=0&y=0It has variety of different languages.
BUT what you are looking for is probably a simple one without any other alphabets on it. So, I had to dig a lot to find it. It was not in usual places. This is what I found:
Transparent Key Covers Keyboard Stickers
KeyCal keyboard stickers are designed to fit desktop and laptop computer keyboards.
Transparent Keyboard Stickers - Suitable for protecting the original printing on keyboards. The sticker set includes 72 clear stickers that fit standard keyboard and laptop alphanumeric keys.
Price: $ 8.95
DataCal Keyboard Sticker Description:
Clear keyboard stickers are used when you want to add additional protection to the original printing on the keyboard keys. The stickers use an easy peel-and-stick method to install. They will not ooze adhesive, dry out, or damage the original keyboard key. This affords you with many years of durable use.
Product Features:
* Durable stickers. Stickers are manufactured of durable Lexan®. They won't tear, crack, discolor, or slip off even after years of use.
* Easy to Apply. The stickers are EASY TO APPLY. The stickers are printed in the same sequence that they appear on the keyboard regardless of the keyboard's original language. See our installation instructions for more information. If necessary, stickers can be cut with scissors for special installations.
* Quality Adhesive. The Sticker adhesive firmly attaches the sticker in place without damaging the keyboard key or the original key legend. The adhesive will not ooze, harden or wear out.
* Removable. If desired, Stickers may be removed without causing damage to the original key or the legend on the key.
* Accurate Die-Cutting. Stickers are printed with rounded corners so they cover the keytop and will not pop off in use.
* Durable and Flexible. Stickers are flexible enough to allow you to feel the touch-typing bumps on the F and J keys.
http://www.datacal.com/transparent-overlays.htmThis is the best way I am aware of.
Good luck!
