A while back I built a Lego Space Needle (which I've dropped in the past :( ).
Someone decorated the real Space Needle with an Angry Bird with the "launch" of Angry Birds Space (which apparently NASA helped with).
After a few years of sitting there, my Lego Space Needle was getting a tad mundane. When my boss mentioned sticking an Angry Bird on it, I laughed him off. But them my sister mentioned having a red Lego apple. It turns out that apple's and birds don't share a lot in common, but we managed anyway.
Like the Space Needle, I managed to drop the Angry Bird too, several times.
A bit later, the Space Needle went to the 2012 Emerald City Comicon (ECCC), so the Angry Bird joined it as well. Lots of nice comments there.
Since it was a comic convention, the Angry bird was joined by Batman and some other Lego comic figures (from sets).