A nice free gift:
Classy 
Wow, nice! Today I received an Email for my golden knob… can’t wait…
Me TOOOOOO
…and I have TWO Voyagers BLING! BLING! ~ an XL and an Electric Blue - 
One to put on an instrument, or KEYCHAIN ~ and one to dangle from the rear-view mirror in the Mr. Pete™ Mobile!!!
That is much more than I expected. I was expecting a sticker or a t shirt or something. Cool!
nice!
Waaaahhh, I was never able to register my Old School… (insert smilie of cry baby)
I got my email today.
So, do the Voyager knobs just pull off or what?
The module DIYers will have fun with that.
Wow, thanks Moog!
I can’t wait to put it on my Old School but I don’t know if I’ll replace the filter cutoff frequency or the volume knob.
my wife’s making fun of my excitement for this! “it’s a KNOB!”
Since the filter is the best known patented Moog device, and is most often associated with Bob, I think it should be on the cutoff of the filter, in his honor.
Yeah, but not ANY knob… A brass one… 
I just saw this on another forum and thought it was a joke.
Moog hasn’t sent me anything about this yet. I’m surprised anyone’s actually keen to have this thing, but I suppose that means if I get one sent I can give it away and make somebody happy.
Hey EricK, can you forward that email to me. i recently changed email addresses, and I think they sent it to my old one. just wanna make sure i confirm my info!!!
I wonder if it’s full solid brass, or brass-plated bakelite ? 
Yay ! Can’t wait to get my brass knob. I will replace cutoff then have a moog knob to use on something else .
Thank you Moog
I was very surprised by the email. Like some one else mentioned, I was just expecting a sticker or a shirt. This is really nice gesture, thank you Moog.
Plus it will look really cool as it start to get more of a patina
This has gotta be the absolute last thing I would have expected. I dig it.
I think it’s very cool! Looking forward to receiving mine!
Anyone know if you’ll be able to just pull off the existing knob or will you need to open the body up?
I just got the email. What a cool gift! Thank you Moog!
If the knob doesn’t pull off, then it is secured with a setscrew. Look for a recessed hole opposite the pointer dot on the knob. I don’t remember if it is slotted or allen wrench.