Someone came over for dinner about two weeks ago, and brought a very large bottle of very cheap champagne. We had a few glasses, then I used a bottle stopper kit that I had received as a gift to re-stop it. Last week, I noticed the bottle was leaking and put a glass underneath it. Now I have a very large, leaky bottle of cheap, and now probably very flat, champagne. Is there anything at all I could use this for, or should I just dump it?