The ornamental design for a toywagon, as shown and described.
FIG. 1 is a front perspective view of a toy wagon top showing my new
design, the broken line showing of the grooves is for illustrative
purposes only and forms no part of the claimed design;
FIG. 2 is a partial rear perspective view thereof, the broken line showing
of the grooves is for illustrative purposes only and forms no part of the
claimed design;
FIG. 3 is a right side elevational view thereof, the side opposite being a
mirror image;