Hello, blizzard fixed the old bug with the turkey shooter to fly, I've found a way to go around their fix
Just do like the same but instead of
"mounting -> put on the turkey"
you do it like
Start casting the turkey shooter, when the player is casting it, the other player mounts up and the player with the mounts still gets transformed to turkey(but you'll have to be fast so you don't get transformed before you'r mount is up),
then simply sly into org or whatever to dismount and be able to fly, enjoy
(remember that the event is soon over so have fun while you can ^^ )
Click here for original thread (Thanksgiving fly without mount!)