The ornamental design for a lawnsprinklersupport, as shown and described.
FIG. 1 is a front perspective view of a lawn sprinkler support showing my
new design with a sprinkler unit and a water feed hose shown in broken
lines, the rear perspective view thereof being a mirror image;
FIG. 2 is a rear elevational view thereof;
FIG. 3 is a left side elevational view thereof, the right side opposite
being a mirror image; and
FIG. 4 is a front elevational view thereof.
The broken line showing of a lawn sprinkler and a water feed hose in FIG. 1
is for illustrative purposes only and forms no part of the claimed design.