There, at the Pordenone Comics 2014, the group of pony cosplay with a...bloody Spy! from TF2.
Anyway: Apple Jack, Twilght Sparkle, Fluttershy, Pinkie Pie, Pinkie (S)Pie, Rainbow Dash and even Spike!
The day was simply Tres Bon!
Yes. I am the Blu Spy. *Snort*
P.s.: if you are one of these cosplayers please notice to me