Cheap and Easy Steampunk Keyboard. Based on the incredibly beautiful (and incredibly expensive) keyboard from Datamancer. With a bit of Photoshop know how and access to a nice color printer, you could design your keys any way you like instead of using stickers. Just remember to seal all stickers and paper with resin or many many coats of polyurethane to make your keyboard hold up to use.
How to make steampunk keys (without scavenging from three typewriters) using brass tubing, resin, and printed images. Also, how to replace the plastic cover of a keyboard with wood. - DIY Project: Make Your Own Great Steampunk Keyboard done by Phirzcol, posted on apartment therapy and instructables