The ornamental design for a storage box for large and fragile decorative bows, as shown and described.
FIG. 1 is a front, top and left side perspective view of a storage box for large decorative and fragile bows showing my new design, and shown in an open state;
FIG. 2 is a front view thereof shown in operative association with large decorative and fragile bows depicted in phantom outline and not part of the claimed design;
FIG. 3 is a top view thereof shown in a closed state;
FIG. 4 is a front, top and right side perspective view thereof in open state; and,
FIG. 5 is a right side view thereof in a closed start.