Memorial service for hungry ghosts - Gakikuyo

...The two types of memorial services are Shutsuten Memorial Service for the Buddhas and Zaiten Memorial Service for all living beings. In addition, there are memorial services for the deceased for their souls, Hungry Ghost Memorial Service for hungry ghosts, Mushi Memorial Service for insects, Opening the eyes of newly constructed Buddha statues, paintings, and memorial tablets, Inbutsu Memorial Service for welcoming Buddha statues into temples and altars, Kaidai Memorial Service for copying sutras, Sutra Memorial Service, and other memorial services such as Hall Memorial Service, Bell Memorial Service, and Bridge Memorial Service. Examples from the local area include Needle Memorial Service, where people take a break from needlework on the 8th of February and December to stick broken or rusty needles into tofu or bury them at the base of a cycad to memorialize the spirits of the deceased, as well as Doll Memorial Service and Tea Whisk Memorial Service, where the objects of memorial services extend to inanimate objects....

*Some of the terminology that refers to "Gaki Kuyo" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…二種供養は諸仏を供養する出纏（しゆつてん）供養と衆生に対する在纏（ざいてん）供養となる。さらに対象ごとに，死者の冥福のためにする追善供養，餓鬼のためにする餓鬼供養，虫のためにする虫供養，新しく造立した仏像，仏画，位牌に対する開眼供養，寺院や仏壇に仏像を迎える入仏供養，経文を書写して供養する開題供養，経供養，そのほか堂供養，鐘供養，橋供養などがある。　民間の例としては，2月と12月の8日に針仕事を休み折れた針や錆びた針を豆腐にさし，あるいは蘇鉄の根元に埋めてその霊を供養する針供養をはじめ人形供養，茶筅（ちやせん）供養など供養の対象が無生物にまで及んでいる。…

※「餓鬼供養」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報