Here are a few recent wallpaper favorites. I'm going to have to repaper my powder room sometimes because the kids exploded a soap bottle and it went all over the wall and stained the paper that is there. I'm not that upset about it, because now I get to repaper the walls!
The style of the first one is where I am leaning, as you'll see because there are so many like it in this post. But I like a lot of the others, too:
Edit: These above are likely the original, Tanzania pattern by Thibaut. There are many similar ones available, too: