A keychain is basically a small plastic ring or link of plastic with multiple keys securely attached to it. The longer the line, the longer the key could be for the given application. The size of the keychain enables a smaller item to be worn more readily than if attached directly to a hearing.

A lapel pin, wait a minute, is a typically worn pin which is most often worn on a coat lapel. They can either be regular badges which indicate someone's affiliation to some sort of organization - like Monty Racing Club, for example - or a long stem pin which can in fact be worn as a Christmas badge.

A keyring is simply a small brass or steel chain with many keys securely attached. Keyring sizes range from one to several keys depending on the need of the individual user and the size of the pocket or purse in which they are being kept.

An emblem is generally an abstract visual or graphical representation that represents an idea, such as an allegory, a moral lesson, or some sort of emblem, such as a star, a lion, an eagle, or a palm tree. It can be used to identify something as well as to demonstrate an association between two or more things.

An emblem is the insignia, emblem or sign used by an association, corporation, sports club, trade union or even political party to indicate membership or affiliation with it. Usually the emblem has a recognizable symbol that is visible to all and is usually located on the chest area of the uniform.