Keys have been in use since we learned to use metal and developed the techniques of molding it. They are used everywhere, from locking our cupboards, rooms, diaries, bags, vehicles, and so on. It is one of the best inventions made by humankind. The usefulness of keys cannot be doubted upon. But all useful things can be made pretty. That is what accessories are for. Keys can be attached with beautiful key chains not only making them look more noticeable and attractive but also making them easier to carry. Custom key chains can make a wonderful addition to your collection of accessories.