The ornamental design for a basketballbottle, as shown and described.
FIG. 1 is a front view of my design for a basketball bottle.
FIG. 2 is a right side view thereof.
FIG. 3 is a left side view thereof.
FIG. 4 is a rear view thereof.
FIG. 5 is a top plan view thereof; and,
FIG. 6 is a bottom plan view thereof.
The top and bottom of the basketball bottle shown in broken lines illustrates that portion of the article in which the design is embodied that forms no part of the claim.