Sweetie came up with this idea recently, so you KNOW it's brilliant, because he is generally against sponsors infringing on the game.
When the home team is up by one run, you will frequently hear reference to earning an "insurance run." One more, to give you a little bit of a safety net.
Much as the call to the bullpen is now frequently sponsored by a local wireless provider, the insurance run could be sponsored by a local insurance company. "This insurance run brought to you by Liberty Mutual Insurance."