The ornamental design for a bucketorganizer, as shown and described.
FIG. 1 is perspective view of the bucket organizer attached to a bucket as environment;
FIG. 2 is perspective view of the bucket organizer with an attachment strap as environment;
FIG. 3 is perspective view of the bucket organizer;
FIG. 4 is a right side view of the bucket organizer;
FIG. 5 is left side view of the bucket organizer;
FIG. 6 is a rear view of the bucket organizer;
FIG. 7 is a front view of the bucket organizer;
FIG. 8 is a top view of the bucket organizer; and,
FIG. 9 is a bottom view of the bucket organizer.
The broken lines of FIGS. 1 and 2 depicting a strap and a bucket illustrate environment and form no part of the claimed design; the broken lines in the figures depict portions of the bucket organizer that form no part of the claim.