The ornamental design for a giftbasketkit, as shown.
FIG. 1 is a front elevation of a gift basket kit showing my new design in use with gift items and a balloon;
FIG. 2 is a front elevation thereof with the gift items and balloon removed;
FIG. 3 is a top plan view thereof;
FIG. 4 is a rear elevation thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a right side elevation thereof; and,
FIG. 7 is a left side elevation thereof.
The gift items and balloon in FIG. 1; gift card in FIGS. 1-4 and 6-7; and, top edge scallops in FIGS. 1-7 shown in broken lines are not part of the design.