Aglet

An aglet is the doohicky that you put on the end of a shoelace. In period it was also used on the ends of braids made for lacing or poynts and generally used of some sort of metal - especially silver or gold (where it would be in a place to be shown off).

The tags was wrapped around the end of braids to stop them from fraying, and lacing or poynts needed something solid and generally slightly pointed to assist in getting them through the lacing holes.