The ornamental design for a lid/seat for a bucket, as shown and described.
Description:
FIG. 1 is a perspective view of a lid/seat for a bucket showing my new design; the broken line showing is for illustrative purposes only and forms no part of the claimed design;
FIG. 2 is a top plan view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a side elevational view thereof, the opposite side being a mirror image;
