The ornamental design for a playingcardholder, as shown and described.
FIG. 1 is a plan view of a playing card holder according to the invention;
FIGS. 2, 3, 4, and 5 are respectively upper, right-hand, _lower, and
left-hand side views in FIG. 1; and
FIG. 6 is a cross-section taken at line 6--6 in FIG. 5, _showing
characteristic cavities, the lower ones being identical, _the four
right-hand upper ones being identical, and the upper left-hand _one being
identical to the upper right-hand ones, except for _its greater width.