The ornamental design for a rotatingplaygroundclimber, as shown and described.
FIG. 1 is a front view of a rotating playground climber showing the new design;
FIG. 2 is a rear view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a top plan thereof;
FIG. 6 is a bottom plan thereof;
FIG. 7 is a top, right side, and front perspective view thereof; and,
FIG. 8 is a bottom, left side, and rear perspective view thereof.
The broken line showing of the rotating playground climber is for the purpose of illustrating portions of the article and forms no part of the claimed design.