I've got a two-tone white-grey blank set, however it's missing one key (I received it like that). If you're using it for a tenkeyless keyboard it's not a problem, but if you're using it for one with a numpad the key that is missing would be numpad 4 or 6 (since it's a blank set it's not a specific key that's missing, but any middle row key, but that's probably where you'd "choose" to miss it).
Not sure if you're looking to put it on a tenkeyless or fullsize or if you're even interested in a blank set.