The ornamental design for a lip balmtubeholder, as shown and described.
FIG. 1 is an environmental perspective view of the lip balm tube holder showing the new design;
FIG. 2 is a side view of the lip balm tube holder showing the new design;
FIG. 3 is a top view of the lip balm tube holder showing the new design; and,
FIG. 4 is a bottom view of the lip balm tube holder showing the new design.
The broken lines immediately adjacent the shading lines in FIGS. 1 and 3 represent the bounds of the claim. The broken lines in FIG. 4 illustrate portions of the article. The broken line disclosure of the lip balm represents the environment of the article. None of the broken lines forms part of the claimed design.