Ok, it's not really a catchy slogan. It's what you might tromp out in the dust on the surface of the moon if you were left behind.
But the brainstorming technique works.
Instead of trying to imagine what your product brand tagline or campaign slogan will look like on a banner or newspaper ad - imagine it in a totally out of context place - like on the moon. What would the message be? What would you try to say from that vantage point?