Look at that! Flat icons escaped to a new dimension. https://www.behance.net/gallery/20126697/La-Poste
Beautiful Movie Icon Designs
Long Shadow on Behance More
Here are some simple icon designs. I like how easy clean they are and each one has a specific opening to it that allows the icon to be a part of the background. I also like how they are all see through and tie in well the background also.