FIG. 1 is a perspective view showing the front side of a first embodiment of the rain barrel of the present invention;

FIG. 2 is a front elevational view of a first embodiment of the rain barrel; and,

FIG. 3 is a bottom view of a first embodiment of the rain barrel.

The right, left, rear and top of the rain barrel do not form part of the claimed design. The broken lines showing of the body of a barrel in the figures are for illustrative purposes only and form no part of the claimed design.