The ornamental design for a toothbrushholder, as shown and described.
FIG. 1 is a top and front perspective view of a toothbrush holder showing
my new design, the broken-line disclosure of a toothbrush being for
illustrative purposes only and forming no part of the claimed design;
FIG. 2 is a top plan view thereof; and,
FIG. 3 is a vertical cross-sectional view thereof, taken along line 3--3 of
FIG. 2.