I just got my set of four S2, and I got four S1 a while back. Since I'm just using them for display, there are certain ones I want and certain ones I don't...
If anyone's interested in trading:
What I have to trade:
Blackbeard (S2 heartbroken one)
Rupture (S2 Tim Burton-esque one)
Hi-Voltage (S1 electricity one)
APK 2008 (S1 single-eye black one - this one's pretty rare, so would trade for cupcake only)
What I want:
Hexcode (S2 black and green honeycomb pattern)
Greeneon (S2 transparent green one)
Cupcake (S2 cupcake)