We like birthdays for everything they have to offer. A day to be showered in gifts; an excuse to act like a seven-year-old brat; getting a free pass to cry at your party, if you want to. These are all great perks to the one day a year you're allowed to celebrate your own existence. But the greatest perk of all is the birthday cake, no question about it.
Birthday cake takes the edge off of getting older. And since it's your birthday, you get to have seconds -- you're almost expected to. But even better than the sugar high is the thrill of the creative executions of these festives cakes. We've seen birthday cakes come in all shapes and sizes, flavor combinations and themes. We've even seen birthday cakes used as pillows. Click through the slideshow below to see some of the best examples that Flickr had to offer.