The ornamental design for a long head spoon with silicone end, as shown and described.
FIG. 1 is a perspective view of the long head spoon with the spoon head showing our new design;
FIG. 2 is a top view of the long head spoon with the spoon head of our new design;
FIG. 3 is a bottom view of the long head spoon with the spoon head of our new design;
FIG. 4 is a side view of the long head spoon with the spoon head of our new design; and,
FIG. 5 is an end view of the front of the long head spoon with the spoon head of our new design.
The broken lines in FIGS. 1, 2, 3, 4, and 5, showing a handle connected to the long head spoon, are for illustrative purposes only, and form no part of the claimed design.