Yes I'm talking about what you are asking for in the Quick Trade thread. I also know that it is possible to get one, but is near impossible to get from here, or any other forum. As far as I know there is only one legit shiny Celebi that has been traded, anywhere. I have never came across a legit shiny Mew, Jirachi, or Deoxys before.
Just don't be fooled by someone saying they have had it hacked checked either. Be sure it's been checked in this thread before you trade for it.
Anyway, good luck with your search, lol.