What's in Eddie's Back Pack?

No Mazda shot today, although I did hit one church sale yesterday.  The only thing of note I picked up was a school desk.  Yes, another school desk.  Couldn't resist.  It was a flip top.

Instead, today we have a backpack shot.

Believe me when I say that this thing is STUFFED!

 I love that backpack.  It holds a TON.  It may be the best 50 cent yard sale purchase I ever made.  And it's stylish too!

So what do you think is in this thing?  If you've been paying attention, you already know.

First two guesses are free!