First let me say, I love Pottery Barn. I love their design department. The rooms they put together are inspiring and they seem down to earth. While browsing Pottery Barn's PBteen.com, I found great cork board inspirations.
This is my favourite..

I LOVE polka dots! Bonus is that the white desk looks great!


#1, 2, 3
pbteenThe price of the boards are a little high, so I'm thinking a trip to Lowes would be more cost efficient, but the inspiration is a start!