Dr. Finkelstein's ingredients

Dr. Finkelstein's ingredients are a set of two key items that appear in Kingdom Hearts. Dr. Finkelstein needs them to create an artificial heart. The first ingredient, a bunch of Forget-Me-Not flowers, are received after finding Sally in the Graveyard. The other ingredient, a Jack-in-the-Box, is found in a chest after completing the puzzle in the Boneyard.

Kingdom Hearts
Dr. Finkelstein wishes to create an artificial heart in order to make the Heartless more terrifying for Halloween. His first attempt failed to function so he sends Jack Skellington, Sora, Donald Duck and Goofy to fetch more ingredients for his second batch. The two ingredients were carefully selected to represent components of the heart that the doctor identifies as essential.

Sally has the Forget-Me-Not, which signifies "memory". The group find her in the Graveyard and asks her for the flowers. She hands them over, despite her discomfort with creating a heart. To represent "surprise", the group retrieve a Jack-in-the-Box from a chest in the Boneyard, which the Mayor pointed out.

Using both of these ingredients, Dr. Finkelstein makes an improved heart. However, with the aid of Lock, Shock and Barrel, Oogie Boogie steals the heart away from the doctor and consumes it so that he can possess a powerful heart to control the Heartless. To his frustration, Oogie Boogie's plans were interrupted when few Heartless answered his call since the heart had no substantial effect. Later, when this news was relayed to Dr. Finkelstein, he pondered over why his creation remained non-functional and wondered whether his ingredients were the problem.