The ornamental design for a weightedpom pom, as shown and described.
FIG. 1 is a front elevation view of a weighted pom-pom showing my new design;
FIG. 2 is a top plan view thereof, the bottom plan view being a mirror image;
FIG. 3 is a right side elevational view thereof, the left side elevational view being a mirror image;
FIG. 4 is an additional right side elevational thereof showing the unclaimed streamers in a separated position with the left side in the same configuration being a mirror image;
FIG. 5 is a front, top left perspective exploded view thereof showing the right and left end caps separated from the cylindrical weight; and,
FIG. 6 is a front top left partial exploded view thereof, showing the left end cap separated from the left streamers.
The broken lines in the drawings show the portions of the weighted pom-pom that form no part of the claimed design.