The ornamental design for a bulbdustertip, as shown and described.
FIG. 1 is a perspective view of the bulb duster tip of the present invention.
FIG. 2 is an elevation view of the bulb duster tip of the present invention.
FIG. 3 is an opposite elevation view of the bulb duster tip of the present invention.
FIG. 4 is a front view of the bulb duster tip of the present invention.
FIG. 5 is a rear view of the bulb duster tip of the present invention.
FIG. 6 is a top view of the bulb duster tip of the present invention.
FIG. 7 is a bottom view of the bulb duster tip of the present invention; and,
FIG. 8 is an elevation view of the bulb duster tip of the present invention in use condition. The broken line showing of the bulb duster is included for the purpose of illustrating environmental conditions and forms no part of the claimed design.