These days, lanyard keychains have become an essential part of trade fairs, conferences and events. Whether to fasten IDs and tickets, as merchandising items, as fashionable accessories, as giveaways or as popular everyday companions. In the case of the latter, their functions extend well beyond merely events, conferences or trade fairs, making them highly effective forms of advertising. It's no coincidence that lanyard keychains have for years been some of the world's most popular advertising materials.