Did you grow up on the border of NJ and NY? If you’re a Jersey City native, you just have to have this mug. Whether just passing through or settling down in this Hudson County city, you can be sure that this mug will be the first thing you see each morning. Gaze out over the Hudson river as you sip on the Jersey City heat mug. It changes from black to white based on heat – the more steam, the whiter it becomes to reveal the “I’d Rather Be In Jersey City” black writing.