Making a flexible, “roll-up” keyboard from a standard USB keyboard is a lot easier than I would have expected. Rolling your own is about as simple as removing the membrane from inside an existing keyboard and gluing key labels in the appropriate places.
Aside from having a portable full-size keyboard, and the additional geek-cred that your workspace will attain, it also seems like this is much easier to clean. Considering what a biological cesspit of a petri-dish most keyboards are, this may have a beneficial health impact for you too.
Make your own Roll-Up Keyboard – Link