What IS that cryptic picture I posted on Facebook?

Last month, I posted an extremely cryptic picture on the Pumpernickel Art Facebook page. Not cool, right?

That's why I've decided I'm TOTALLY going to tell you what it is...on Saturday. But good news...the picture is BACK up on Facebook! You can see it at www.facebook.com/pumpernickelart.

What's going on? Check it out and leave your guess in the replies! ‪#‎BurlwoodAnniversary‬