Baby booties are a great way to put your crazy yarn to good use, because babies can pull off bright colors and fluffy textures better than adults can. Additionally, we tend to give more leeway on crazy socks than on any other piece of clothing. Consider it, if a baby is wearing a crazy fluffy/colorful/sparkly hat, everyone will comment on it. If they're wearing crazy socks, on the other hand, people will just say they're cute.
The pattern shown above is: Rolled Cuff Baby Booties by Nickie Alexander, which you can view by clicking on the picture.