The ornamental design for a tongueshield for use in discouraging fingernail biting, substantially as shown and described.
FIG. 1 is a top plan view of a tongue shield for use in discouraging
fingernail biting showing my new design, the bottom being substantially
similar in appearance;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof; and
FIG. 4 is a left side elevational view thereof, the right side being a
mirror image.