The ornamental design for a beverage can holder with retaining ring, as shown and described.
FIG. 1 is an isometric view of a beverage can holder with retaining ring showing my new design, with a can shown in phantom lines to indicate environment;
FIG. 2 is an exploded isometric view thereof;
FIG. 3 is a front view thereof, with a can shown in phantom lines to indicate environment, the back, left side, and right side views being identical to the front view;
FIG. 4 is a top view thereof; and,
FIG. 5 is a bottom view thereof.
The broken lines in FIGS. 1, 3, and 4 illustrating a beverage can depict environmental subject matter that forms no part of the claimed design. The broken lines in FIG. 2 depict portions of the beverage can holder with retaining ring that form no part of the claimed design.