FIG. 1 is a front perspective view of a multi-functional cap in accordance with the present design;
FIG. 2 is a front elevational view thereof, the rear, right and left side elevational views being identical to the front elevational view;
FIG. 3 is a top plan view thereof;
FIG. 4 is a bottom plan view thereof;
FIG. 5 is a bottom perspective view thereof;
FIG. 6 is a is a front perspective view of a second embodiment in accordance with the present design;
FIG. 7 is a front elevational view thereof, the rear, right and left side elevational views being identical to the front elevational view;
FIG. 8 is a top plan view thereof;
FIG. 9 is a bottom plan view thereof;
FIG. 10 is a bottom perspective view thereof;
FIG. 11 is a front perspective view of a third embodiment in accordance with the present design;
FIG. 12 is a front elevational view of the third embodiment illustrated in FIG. 11, the rear, right and left side elevational views being identical to the front elevational view;
FIG. 13 is a top plan view of the third embodiment illustrated in FIG. 11;
FIG. 14 is a bottom plan view of the third embodiment illustrated in FIG. 11;
FIG. 15 is a bottom perspective view of the third embodiment illustrated in FIG. 11;
FIG. 16 is a front perspective view of a fourth embodiment in accordance with the present design;
FIG. 17 is a front elevational view of the design illustrated in FIG. 16, the rear, right and left side elevational views being identical to the front elevational view;
FIG. 18 is a top plan view of the design illustrated in FIG. 16;
FIG. 19 is a bottom plan view of the design illustrated in FIG. 16; and,
FIG. 20 is a bottom perspective view of the design illustrated in FIG. 16.
The broken lines shown are included for the purpose of illustrating portions of the multi-functional cap that form no part of the claimed design.