The ornamental design for throwing trap, as shown and described.
FIG. 1 is a perspective view of a throwing trap showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof
FIG. 8 is a rear perspective view thereof; and,
FIG. 9 illustrate the rear frame folded embodiment, where those portions of the design indicated by broken lines in the above figures form no part of the claimed design.