Tsukumogami (付喪神, "artifact spirit") are a type of Japanese spirit. According to the Tsukumogami-emaki, tsukumogami originate from items or artifacts that have reached their 100th birthday and thus become alive and aware. Any object of this age, from swords to toys, can become a Tsukumogami. Tsukumogami are considered spirits and supernatural beings, as opposed to enchanted items.
Kasa-obake (傘おばけ?) are mythical ghosts or yōkai in Japanese folklore. They are sometimes considered a tsukumogami (objects that have reached their 100th birthday and thus become alive and self-aware) that old umbrellas turn into.