The ornamental design for a glassescordtip, as shown and described.
FIG. 1 is a perspective view of a glasses cord tip showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top view thereof; and,
FIG. 7 is a bottom view thereof.
The broken lines shown in the drawings figures are included for the purpose of illustrating unclaimed portions of the glasses cord tip and form no part of the claimed design.