So I borrowed the monster idea from here:
http://www.craftster.org/blog/?p=10739And expanded on it to make my son a new backpack. His rolling doggy suitcase was looking kinda dirty from all of our trips.
Here is what I came up with!

The monster, made from fleece. His name is embroidered on the flap (Levi)

This is the side pocket, it closes with a little snap. I embelished it with a little textured fleece monster with googly eyes!

This is the back, I put batting the the back, and quilted it all over. I've never done this kind of quilting before, I just used contasting thread and started doing spiral rectangles and streight lines all over the place. It looked pretty awsome when done, I might do a whole quilt this way sometime!
The straps have D rings at the bottom, so I can adjust the strap length (by picking out the stiches there and sewing it to the right length)

This is the other side, its 'ooga booga' knit fabric, and I just stiched a swirly pattern around it

Inside the flap I put a peice of clear plastic and his info under it. It has my cell number, his full name, and 'I have food allergies'
This pic also shows the drawstring tied up. The flap closes down with a snap. Im too cheap to buy a magnetic clasp!

Here is the inside filled up with tones of toys! I probly should have made the whole thing a little smaller, b/c he is a tiny kid (Levi just turned 3), and when full, he tips backwards if he carries it! It doesnt look big on him, but when full its too heavy for him!

This is what the pockets on the inside look like - on one side there is 2 big pockets, on the other side there is 3 smaller/shallower pockets and 2 rows of elastic loops which hold things like playdough and things like that.
I put a handle on top as well (helpful for the airport, I can hold onto it to steer him through crowds!)
I also did fun wavy stiching on everything, just for fun.
Here is my little traveling being silly on the airplane. (he rides rearfacing in his carseat in the car, but forward facing on the plane b/c his seat doesnt fit rearfacing in economy!) His chestclip is a tiny bit too high (it should be at armpit level) and his head rest is up b/c I hadnt put it down yet. (Im a carseat tech so I have to point those things out, sorry!)

Thats it! c & c welcome!