There are two now, actually. One that has been around for a while, all self sculpted, hand punched hair and the right height as well, amazing costume.
And now there's this new one, had his debut at Jedi Con this year. Done by Jörg aka. "Trap Joe" on the RPF, and it's a beauty! It wasn't Chewie at the con, but a "werewookiee", had to do with the con opening movie. Still a fabulous costume!