The ornamental design for a badgemaker, as shown and described.
FIG. 1 is a perspective view of a badge maker, embodying my new design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a bottom plan view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a front elevational view thereof; and,
FIG. 7 is a rear elevational view thereof.
The broken line showing of the badge maker is included for the purpose of illustrating portions of the badge maker and forms no part of the claimed design.