The ornamental design for an earbudholder, as shown and described.
FIG. 1 is a front, top, left side perspective view of an earbud holder showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof.
The broken lines depicting portions of the earbud holder represent unclaimed features of the article and form no part of the claimed design. The broken lines depicting a phone and earbuds represent unclaimed environment that forms no part of the claimed design.