The ornamental design for a shower caddyattachment, as shown and described.
FIG. 1 is a perspective view of a new, original and ornamental design for a shower caddy attachment, mounting arms of the exemplary shower caddy attachment shown in a rest state or position;
FIG. 2 is a front elevation view of FIG. 1;
FIG. 3 is a rear elevation view of FIG. 1;
FIG. 4 is a right side elevation view of FIG. 1;
FIG. 5 is a left side elevation view of FIG. 1;
FIG. 6 is a top plan view of FIG. 1;
FIG. 7 is a bottom plan view of FIG. 1;
FIG. 8 a perspective view of the exemplary shower caddy attachment of FIG. 1 together with an associated shower caddy;
FIG. 9 is a perspective view of the exemplary shower caddy attachment with the mounting arms in an open or engagement state or position; and,
FIG. 10 a perspective view of the exemplary shower caddy attachment of FIG. 9 together with the associated shower caddy.
The broken lines shown in the figures represent portions of the shower caddy attachment that form no part of the claimed design. The broken lines shown in FIGS. 8 and 10 represent environment and do not form part of the claimed design.