I’m at the other end of this process. When each my children was born, I bought Champagne to celebrate their births with friends and family. When our son was born in 1984, I acquired a dozen Krug Grand Cuvee with the help of a distributor friend (there was literally no Krug for sale in California at that time) and when my daughter was born in 1987, I bought a dozen 1975 Bollinger R.D.
I kept one bottle from each case. I’m going to open the bottle of Krug soon with my son and his wife to celebrate the birth of their daughter last week. Regardless of how it tastes, the wine will be perfect. As was the '75 Bollinger R.D. we drank to celebrate the birth of my daughter’s daughter last year.