The ornamental design for a barbequeskewer, as shown and described.
FIG. 1 is a top perspective view of a barbeque skewer showing our new design;
FIG. 2 is a left side elevational view thereof;
FIG. 3 is a top plan view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a rear end elevational view thereof; and,
FIG. 7 is a front end elevational view thereof.
The broken line showing of the flexible wire attachment collar and flexible wire is for illustrative purposes only and forms no part of the claimed design. The broken line showing of the flexible wire portion is shown broken away to indicate indeterminate length.