Yes, you got it right, that's "Nyancat" or "Poptart cat", which someone made and pulled around with them. It also played its signature song xD

And yes, I'm more than aware what draws in the fangirls, so I use this to my advantage, muahaha~

I saw some really nice pony cosplayers, among so many other things! Cons are always a blast, even if sometimes it's a headache and overwhelming at the same time XD

*hug* Hope you're doing well! Haven't heard from you much lately ;D