The ornamental design for a towelrollholder, as shown and described.
FIG. 1 is a reduced perspective view of a towel roll holder showing my new
design, the towel roll being shown in broken lines for illustrative
purposes only;
FIG. 2 is a top plan view thereof;
FIG. 3 is a side elevational view taken from the right of FIG. 1;
FIG. 4 is a front elevational view thereof, the rear and bottom being flat
and unornamented.