Here's a tutorial for a Panda Party Hat from Blueberry Junkie. Of course I found this one while scouring Pinterest...
If you have a little one who loves pandas, then this is the ideal party hat for their birthday. Hey, I made one myself, and I'm not little, NEITHER is it my birthday! It was super easy! (I used construction paper instead of cardstock. The only difference was that it was a little...flimsy.) :)