FIG. 1 is a front elevational view of a Christmas card holder showing my new design;

FIG. 2 is rear elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a bottom, left, and front perspective view thereof.

The broken-line disclosure of Christmas cards in the views is for illustrative purposes only and forms no part of the claimed design.