
Based on the provided information, bottles of champagne and other sparkling wines can be acquired through specialized online retailers. The vendor Premier Champagne, for example, operates an e-commerce platform that includes a specific category for "Mini/Split (187ml) Champagne & Sparkling Wine," indicating a dedicated inventory of these smaller format bottles available for purchase online.
Furthermore, individual producers also appear to be a source for these products. The brand Korbel, a producer of sparkling wine, has a web page specifically mentioning "mini-bottles" for use as favors. This suggests that consumers may be able to procure these items directly from the brand or through distributors that supply them for events. The common industry term for these bottles is a "mini" or "split," and they typically hold a volume of 187ml.


