A crown is something that royalty and deities wear on their heads. Crowns are used to signify that the wearer is someone special, and might hold special power. Crowns are usually made from precious metal and are studded with jewels, but they can be also made from simpler materials like wood, flowers or leaves.
Cufflinks are used to hold closed the cuffs of dress shirts. Shirts that are designed to be used for cufflinks have two buttonholes. Cufflinks are effectively two buttons, held together with a short piece of chain or a short rod. Today, shirts that need cufflinks are usually only worn on special occasions.
