Hopefully that might encourage someone to make it exist.
haha
ha
haha
I think actually there might be some confusion. At least I hope there is.
an "instrumental" is, (sort of obviously) merely the performance of a piece without any vocals... or occasionally with an instrument accompaniment instead of vocals (If I understand correctly, anyway). This could be either done because the artist(s) haven't finished the lyrics,haven't quite finished the song; usually as a "teaser" track. (for example, the Seven Seas of Rhye Instrumental that can be found on Queen's first Album), or simply be recorded after the fact (often as a filler to fill up an album, much like "acoustic" recordings). There are also karaoke tracks that are simply the result of running the appropriate filters on the actual track to remove the vocals.
The latter is NOT an instrumental version. It is a "karaoke" version. Also, the filtering generally diminishes the song quality.
I say this because the only way you can get an proper instrumental is of the original artists decide to re-record the piece without any vocals. The next best thing is for somebody to cover that piece and not provide any vocals. Either way, it will require a lot of effort. This is why I suspect you may actually be looking for something more like a karaoke version, because I am unwilling to jump to the conclusion that you truly think that creating a proper instrumental track to a given piece can be done by just anybody. The latter however can b e done by just about anybody. My three year old MP3 player has some silly karaoke setting that attempts to filter out vocals.