The ornamental design for towel twirler, as shown and described.
FIG. 1 is a side elevational view of the towel twirler;
FIG. 2 is a side view of the towel twirler of the invention;
FIG. 3 is a top view of the towel twirler;
FIG. 4 is a bottom view of the towel twirler;
FIG. 5 is a top perspective view of the towel twirler; and,
FIG. 6 is a bottom perspective view of the towel twirler.
The towel and wrist strap in FIG. 1 and the cut-out portions in FIG. 3 are illustrated with broken lines and form no part of the claimed design and are provided to simply illustrate the environment in which the twirler is used.
The stippling presented in the Figures is intended to show contour and not surface texture.