The front of this exciting, fun, and vibrant greeting card design features a colorful celebratory fireworks inspired pattern, along with the number “” having a multicolored rainbow like gradient pattern, on a black colored background. The inside features a custom greeting message, or could perhaps be cleared and left blank if a message is to be written by hand instead. A greeting card like this could be a fun, happy way of sending a message to somebody who is celebrating their thirteenth birthday, or perhaps to a couple celebrating their thirteenth wedding anniversary, or to somebody celebrating some other th event. [~Z]

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