Graduation tassels are usually worn on a graduation cap during a high-school or university commencement ceremony. Each graduation tassel also can include a small metallic graduation year charm indicating the year, including options for past years.
A corn is usually very painful.  Corns can develop along the tops and sides of the joints of the toe especially along the edge of the fifth toe. They can develop in between toes when one of the bones of the toe rubs on the bone of the toe next to it and on the sole of the foot, usually near the ball of the foot. A corn feels like walking on a little stone.
Calluses and corns are caused by repeated pressure or friction on an area of skin. The pressure causes the skin to die and form a hard, protective surface. A soft corn is formed in the same way, except that when sweat is trapped where the corn develops, the hard core softens. This generally occurs between toes.