The pink circles on his forehead aren't acne — they're paint shields. After I'm done spraying, I'll peel them off, and hopefully the plastic beneath will still be clear. Then I can stick an LED inside his head and make them glow, just like the real IG-88 (seen here waving from big IG-88's shoulder).
If you look closely, you'll see a white rod running up through his head. That's a puppeteer's control rod:
I also picked up some green posterboard for use as a green screen (!). I spent some time last night playing around with iMovie's green screen function, and found it blessedly easy to use. I know I'll use it for the starfield outside the Falcon's cockpit; I'm not yet sure about the two EXT: SPACE shots.
This continues to be wildly euphoric.