Websites that sell Keyboard protective covers
Do you want total protection from Spills, Dust, Dirt, etc... for your keyboard or laptop?
http://www.protectcovers.com/
At Viziflex Seels, we specialize in custom-designed keyboard covers. In fact, we're the original--and the largest--manufacturer of transparent, form-fitting keyboard covers in the world.
http://www.viziflex.com/
PC Keyboard.com
Custom Keyboard Covers
We stock protective covers or "skins" for most IBM, Lexmark and Unicomp keyboards. We also supply protective covers for many of the more popular brands of PC's. If you don't see what you need in our list, call us at 800-777-4886.
http://shop.store.yahoo.com/pckeyboards/keyboardcovers.html
Thinking of buying a keyboard cover? 
Want a free sample* of  Seal and Type?
Visit http://www.kador.com/leaflet1.htm
Computer Keyboards Protective Covers
The durable, clear covers can be quickly installed to protect your keyboard from spills, moisture, dirt, and other contaminants. 
Laptop Computer Protective Covers
The durable, clear covers can be quickly installed to protect your valuable laptop from spills, moisture, dirt, and other contaminants. It does not interfere with typing or closing the laptop.
Telephone Protective Covers
The durable, clear covers can be quickly installed to protect your telephone from spills, moisture, dirt, and other contaminants.
http://www.prokeyco.com/prokeyco/ 
Keyboard Protector Membrane Shield
(FOR DESKTOP KEYBOARDS AND LAPTOPS) 
Protect your computer keyboard/laptop from dust, dirt, and spills while you type. Fentek's keyboard protectors are made of a thin soft polyurethane membrane that wraps around the keyboard and keys for protection, yet won't interfere with the speed or accuracy of your keystrokes. They are custom designed to mold to your specific keyboard model in a non-glare matte finish. A perfect solution for use in offices, factories, hospitals, service stations, restaurants...wherever keyboard protection is required. 
http://www.fentek-ind.com/kbprtect.htm
 
The Key Connection
A transparent form-fitting keyboard cover, custom molded to fit your keyboard. Easy to use and install. 
"Fits Like a Glove" while providing long lasting protection in virtually any environment.
http://www.customkeys.com/keycovers.html