The ornamental design for a helicaltrack for a magnetic wheel toy, substantially as shown and described.
FIG. 1 is a top plan view of the helical track for a magnetic wheel toy
illustrating my new design, with the bottom plan view being a mirror image
thereof;
FIG. 2 is a right side elevation view thereof with a magnetic wheel shown
in broken lines for illustrative purposes only and forming no part of the
claimed design, the left side elevation view being a mirror image thereof;
and,
FIG. 3 is a front elevation view thereof with the rear elevation view being
a mirror image thereof.