The ornamental design for a slip-on rubber hand protector for hand held traffic control signs, as shown and described.
FIG. 1 is a perspective view of the slip-on rubber hand protector for hand held traffic control signs of my design;
FIG. 2 is an environmental view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a bottom view thereof;
FIG. 5 is side view thereof, both right and left sides looking the same; and,
FIG. 6 is a face view thereof, both front and back faces looking the same.
The portion of FIG. 2 shown in dashed lines is for the purpose of illustrating an environmental structure, a stop sign with a post, and forms no part of the claimed design. All surfaces not shown form no part of the claimed design.