A funny retro style Birthday card is sure to please most people. This one from NobleWorks is sure to be a gas! People promise others lots of things, especially for their Birthdays. They promise to take them somewhere, do something for them, or even get them something that they want. Not too often do you hear of such a promise as this one... To hold your farts until it hurts! But then again, some of us like being original! What is more original or unique than this? Dare to stand out in the crowd by giving someone this funny card for their special day, and let them know that you too promise to hold your farts until it hurts... At least around them!