In Japanese folklore, tsukumogami are tools that have acquired a kami or spirit. According to an annotated version of The Tales of Ise titled Ise Monogatari Shō, there is a theory originally from the
Woodblock print, A New Collection of Monsters 新板化物つくし, 1860
Hokusai, The Lantern Ghost, 1826/1837
The Hyakki Yagyō Emaki from the Muromachi period, author unknown. They are yōkai of tools, so they are commonly thought of as tsukumogami.
The Boroboroton is a tsukumogami yōkai, and is believed to be evil and dangerous to humans.
Boroboroton as depicted in Toriyama Sekien's Hyakki Tsurezure Bukuro (百器徒然袋).
Child's shikibuton, late 1800s. Boroboro (patchwork) held together with over-all quilting stitching; see sashiko.