The ornamental design for a cardholderstick, as shown and described.
FIG. 1 is a front side perspective view of a first embodiment of the subject cardholder stick, showing the design of the outer ring with an indeterminate center portion;
FIG. 2 is a front side elevation view of a first embodiment of the subject cardholder stick;
FIG. 3 is a rear side elevation view of a first embodiment of the subject cardholder stick, opposite the front side thereof;
FIG. 4 is a first lateral side elevation view of a first embodiment of the subject cardholder stick;
FIG. 5 is a second lateral side elevation view of a first embodiment of the subject cardholder stick, opposite the first lateral side thereof;
FIG. 6 is a top plan view of a first embodiment of the subject cardholder stick; and,
FIG. 7 is a bottom plan view of a first embodiment of the subject cardholder stick, opposite the top plan view thereof.
The broken lines in the drawings are included for illustrating portions of the article that form no part of the claimed design.