FIG. 1 is a bottom plan view of a mouthguard fitting tool showing our new design;
FIG. 2 is a right side elevational view;
FIG. 3 is a top perspective view;
FIG. 4 is a front elevational view;
FIG. 5 is a rear elevational view;
FIG. 6 is a top plan view; and,
FIG. 7 is a left side elevational view.
The broken line drawings of a mouthguard are for illustrative purposes only and form no part of the claimed design.