Use for the Creaking Heart(Pale Garden)

The most important feature of the pale garden is the Creaking and the Creaking heart, I belive that the Creaking heart should have a value drop, Amber, that only is available during the night when it is active to create a good risk/reward. I would love to see a valuable item like this used in unique ways, like blocks, smithing table use, or perhaps a potent potion ingredient.