doubleofive said:
The Chewie in those commercials looks better than the one in RotS. How does that happen?
Either there's a vintage Chewie suit they still use for such occasions, or the "promotional" costume is made of the same materials as the original. (Knitted mohair and Yak hair.) One detail I got off the Blu Rays is the ROTS Wookiee fur was made from synthetic hairs.