Concept keyboard - but if you have enough bottle caps -- it could be done.
Timber Wolf gaming keyboard.
Original USS Enterprise with crew mouse.
For the true geek. Non functional.
Kickstarter project to produce bamboo keyboards for iPads.
Fully functional keyboard.
Modified Macbook pro keyboard.
Projects a virtual keyboard onto any flat surface.
With matching headphones and mouse.
Edible. Not functional.
Full keyboard with backlighting and beeps.
Covered in gold leafand apparently not as expensive as you imagine at $271.
Concept of a removeable keyboard that slots into laptop keyboard space for touch keyboard functionality.
I'm not sure how it would cope with being cleaned.
USB keyboard for PC and Mac.
Wooden stick on keys for Apple Keyboards.
Not functional of course.
Not a usable keyboard, but you could have a go at making it functional with some electronics and a lot of spare time.
Made from Brass, black felt and wood