The ornamental design for a mainbody of indoorplant cultivators, as shown and described.
FIG. 1 is a front perspective view of the main body of indoor plant cultivators showing our new design;
FIG. 2 is a front view thereof;
FIG. 3 is a back view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a reference view showing the state of use in which one of the shelves of the claimed design has been slid forward.
The broken lines depict portions of the main body of indoor plant cultivators that form no part of the claimed design. The dash-dot broken lines define the bounds of the claimed design and form no part thereof.