Well If you want to change the entire looking of your keyboard from QWERTY to DVORAK then you can simply replace the KEY CAPS with other stickers. read more
How to Switch to a Dvorak Keyboard Layout Three Methods: Making the Change on your Computer Changing your Keyboard Learning to Type with the Dvorak Layout Community Q&A The Dvorak keyboard layout is an alternative to the typical QWERTY keyboard layout that comes with most keyboards. read more
Two are laptops (a Macbook Pro and an Alienware). One is a Mac Mini. One is a Raspberry Pi. OS X El Capitan comes with four Dvorak layouts, but I'd need a keyboard overlay or key cap stickers to make proper use of it, and I have far better things to spend my money on (like the RPi 3 I can't quite afford at the moment. Or milk.). read more