The ornamental design for tooth brush caddy, as shown.
FIG. 1 is a top, front, and left side perspective view of a tooth brush caddy showing my design;
FIG. 2 is a vertical cross-sectional view of the decorative cover portion, taken along line 2-2 of FIG. 3, with the remaining portion omitted for clarity of illustration;
FIG. 3 is a top plan view of the decorative cover portion, with the remaining portion omitted for clarity of illustration;
FIG. 4 is top plan view of the interior portion, with the decorative cover portion omitted for clarity of illustration;
FIG. 5 is a front elevational view of the interior portion, with the decorative cover omitted for clarity of illustration;
FIG. 6 is a front elevational view thereof;
FIG. 7 is a side elevational view thereof; and,
FIG. 8 is a vertical cross-sectional view thereof, taken along line 8-8 of FIG. 7.