This is the ultimate gift for every guitar enthusiast in your life - including yourself, of course! 
READ MORE HERE!
Where do we get these from? More details would be helpful.
Thanks, but I wonder why wasn’t this linked in the announcement. Didn’t know that was there!!
Are we supposed to keep hunting through the main website just in case there is something new?
I’m pretty sure it was mentioned in the newsletter.
Edit: though can’t seem to remember the last time I saw the newsletter posted in the forum unless I missed the link being posted on here 
I took a closer look and I see this is related to the JustinGuitar App, the Musopia app, not one one of those on the website.
I’ve added a link to the topic first post.
I also noticed a banner on the landing page of the website.