Bvlgari New Product Release: Bvlgari Bag Charm Keychain. Bvlgari Keychain, the latest model of bag charm, features a higher-end design inspired by celebrity styles. This classic collaboration design concept keychain series showcases a vintage finish and is not a glossy version available on the market. This item has been consistently popular and is a best-seller within Bvlgari, making it an excellent match for trendy backpacks.