FIG. 1 is a front perspective view of a first embodiment of the mouthpiece showing my new design;
FIG. 2 is front view thereof;
FIG. 3 is rear view thereof;
FIG. 4 is a view of one side thereof;
FIG. 5 is a plan view thereof;
FIG. 6 is a sectional view along line 6-6 of FIG. 2;
FIG. 7 is a rear perspective view thereof;
FIG. 8 is a view of the opposite side thereof;
FIG. 9 is an underneath plan view thereof;
FIG. 10 is a front view thereof;
FIG. 11 is rear view of thereof;
FIG. 12 is a side view thereof;
FIG. 13 is a plan view thereof;
FIG. 14 is a sectional view on line 14-14 of FIG. 10;
FIG. 15 is a rear perspective view thereof;
FIG. 16 is a front perspective view thereof;
FIG. 17 is an opposite side view thereof;
FIG. 18 is an underneath plan view thereof;
FIG. 19 is a front perspective view of a second embodiment of a mouthpiece showing my new design;
FIG. 20 is front view thereof;
FIG. 21 is rear view thereof;
FIG. 22 is a view of one side thereof;
FIG. 23 is a plan view thereof;
FIG. 24 is a sectional view along line 24-24 of FIG. 20;
FIG. 25 is a rear perspective view thereof;
FIG. 26 is a view of the opposite side thereof;
FIG. 27 is an underneath plan view thereof;
FIG. 28 is front view thereof;
FIG. 29 is rear view of thereof;
FIG. 30 is a side view thereof;
FIG. 31 is a plan view thereof;
FIG. 32 is a sectional view on line 32-32 of FIG. 28;
FIG. 33 is a rear perspective view thereof;
FIG. 34 is a front perspective view thereof;
FIG. 35 is an opposite side view thereof; and,
FIG. 36 is an underneath plan view thereof.
The broken lines in the drawings are included for the purpose of illustrating environment and form no part of the claimed design.