The ornamental design for a lanyardbuckle, as shown and described.
FIG. 1 is a perspective view of an unbuckled round lanyard buckle showing my new design;
FIG. 2 is a front view of the round lanyard buckle;
FIG. 3 is a right side view of the round lanyard buckle;
FIG. 4 is a top view of the round lanyard buckle;
FIG. 5 is a bottom plan view of the round lanyard buckle; and
FIG. 6 is a perspective view of the buckled round lanyard buckle;
FIG. 7 is a perspective view of an unbuckled oval lanyard buckle showing my new design;
FIG. 8 is a front view of the oval lanyard buckle;
FIG. 9 is a right side view of the oval lanyard buckle;
FIG. 10 is a top view of the oval lanyard buckle;
FIG. 11 is a bottom plan view of the oval lanyard buckle; and,
FIG. 12 is a perspective view of the buckled oval lanyard buckle.
The broken line showing of straps and associated elements is included for the purpose of illustrating environmental matter and forms no part of the claimed design.