No, there isn't.
You've been given, via link, examples of beneficial mutations. Now you're engaged in the virtual equivalent of holding your hands over your ears and intoning, "nah, nah, nah, nah; I can't hear you."
Furthermore, even ignoring directly or immediately beneficial mutations -- which nevertheless do occur, as has been proved to you -- the majority of mutations are neutral. Their accumulation within a specie's genome builds up a genetic diversity which is in itself beneficial, providing for future adaptive shifts, differential disease resistance, and the like.