Hello Kitty Laptop Bag What Kinda Laptop Bag Should I Get?

What kinda laptop bag should I get? - hello kitty laptop bag

So I have to laptop bag, just to get my lappy back to school. I am not 18 or 21 more, so I do not want a crazy bright blue or red, or a laptop bag with Hello Kitty or Optimus Prime in it. I am 30 years old, but I'm an old man I'm a geek at heart.
Also do not want more than $ 300 for a designer, never heard of. I just need something to laugh does not fit into a laptop 17 "and something that students, when I bring them into the class.

Do I have something that does not exist?