While I don’t think that these would go well with a business suit, these cases from Case-Mate are quite unique. These iPhone 4 cases will set your phone apart from all of the rest, and that can be good or bad. Both of these cases, the Waddler and the Monsta, are available in a variety of colors.
You’ve probably guessed it already, but the Waddler makes your iPhone look like a waddling penguin while the Monsta is just plain silliness. They come in whimsical designs, but also include the practical addition of textured silicon for a better grip and a distinctive tactile element.