We use these flexible washable Keyboards in my office. Check them out as they are on sale for $10.99
This revolutionary folding keyboard is water resistant, flexible, dust and contaminant proof. The keyboard can be used in industrial environments, hospitals, libraries, marine and boating applications, in fact anywhere where dust and liquids are present. The silicon-based material is impervious to almost anything! The washable, roll-able keyboard has been called the best thing to happen to typing since the backspace key.
Lightweight, ultra-slim, and compact, this keyboard is perfect for travel, school, or any work environment. It fits easily in your briefcase, backpack, or notebook carrying case and you don't have to worry about any sharp edges! The soft material allows a quick, reflexive typing action that is silent and more comfortable than traditional hard, plastic keyboards.
The flat design also offers an ease in typing which eliminates negative-angle stress to your wrists. USB connector compatible, plus includes a USB to PS/2 adapter. This flexible rubber keyboard really can handle whatever your day brings to it!
Get them here