I claim the ornamental design for a receptacle for recycled materials, as shown and described.
FIG. 1 is a perspective view of a receptacle for recycled materials showing my new design;
FIG. 2 is a left side elevational view thereof, the right side elevational view thereof being a mirror image of the left side elevational view thereof;
FIG. 3 is a front elevational view thereof, the rear elevational view thereof being a mirror image of the front elevational thereof;
FIG. 4 is a top plan view thereof; and,
FIG. 5 is a bottom plan view thereof.
The broken lines in FIG. 1 are for illustrating unclaimed portions of the receptacle for recycled materials and form no part of the claimed design.