The ornamental design for an elasticbreakbrake, as shown and described.
FIG. 1 is a perspective view of an elastic break brake showing our new design;
FIG. 2 is a front elevation view thereof;
FIG. 3 is a left side elevation view thereof; and,
FIG. 4 is a top plan view thereof.
The broken lines shown in the figures are for the purpose of illustrating portions of the elastic break brake and form no part of the claimed design. The broken lines showing a portion of a thread are for the purpose of illustrating environment and form no part of the claimed design.