Balenciaga New Product Release: Balenciaga Bag Charm Keychain. Balenciaga Keychain - the latest bag charm with a higher-end design, similar to what celebrities use. This classic co-branded design concept keychain series features a detailed vintage finish, unlike the glossy versions available on the market. This item has been consistently released and is a best-seller within the Balenciaga collection, making it a perfect match for trendy backpacks.