If Nerdsday is going to be a thing, I can't in good conscience not participate. I've been a Sci-Fi geek since I first saw Star Wars as a wee lad, so let's start there.
I don't think R2-D2 needs any introduction.
It will come as no surprise that there have been lots of versions of everyone's favorite astromech droid. This particular one is lacking some of the articulation features that others have (for instance, turning the dome raises/lowers the middle foot) because he has lights and sounds, which I can't really show in pictures (also, because the batteries are dead).
And yes, he's plastic. Deal with it.