All credits go to images' owner. None of them are mine.
I get them from different sites. Just a few tumblr-ish wallies for you guys. :)
Just click on the image and click save image once it enlarges.
Below are some images that are suitable for keyboards.
Goes well with the white fonts for customize background in CK.
(TIP: Set pink nude as your theme so that the key buttons are transparent to show full image.)