I fell in love with the Das Keyboard for computers which is all black and has no characters or letters. I've been looking everywhere for a smaller version for my Bold 9780 but can't find it - anyone have any idea?
I think a bit of black nail polish will go a really long way. It's not a heavy mod by any means, and if you decide you don't like the results, nail polish remover to the rescue. Sharpie isn't as permanent as you would think and would wear off by the end of the first day, with black thumbs as a nasty side effect.
A steady hand and the small nail polish brush should be perfect, since it's designed to smooth itself out, should be a nice sleek look. I've used it to mod computer cases, as well as put letters back ON my keyboard (they wear off, what can I say).