A hockey stick assembly has an elongate rubbery damping material installed within a hollow stick shaft. The insert may be formed with one end that has, or may have a cap or socket mounted at one end that has, an indexing member for locating the elongate material within the hollow shaft. The cap or socket or end may include a widened portion, and may include projections or a peripherally extending flange for engaging the butt end. A cap may be placed over the end of the stick once the insert has been installed. The insert may be removable. It may be a high density rubber or rubber-like polymer that may tend not to rattle. The insert may have constant thickness, and be formed to define a plug and stopper at one end. The other end is trimmed to length and slid into a loose fit within the shaft.