The ornamental design for a packagingbox for smokers' accessories, as shown and described.
3. Packaging box for smokers' accessories
3. Packaging box for smokers' accessories; 3.1 perspective view, 3.2 front elevation view, 3.3 rear elevation view, 3.4 left side elevation view, 3.5 right side elevation view, 3.6 top plane view, 3.7 bottom plane view; left and right most layers can be swivelled on adjacent parts of box; the box may be closed by swiveling the left and right parts thereof along the center hinge line; product formations may be provided in layers and/or box parts.