Wine bottle stopper wedding favors are wonderful and functional wedding favors. Your guests will love these practical and useful wedding favors they can use over and over again at home. What an elegant reminder they will have of your wedding day. When you open a bottle of wine, it's always a good idea to put a stopper in it so that dust and air does not get into your wine. This is true whether you're planning on finishing it over the same evening, or going to put it in the fridge to finish up in the next few days.