Psychaloid Seance Trumpet
From Kook Science
The Psychaloid Seance Trumpet is a spirit trumpet that was formerly offered for sale by Psychic Stores of Chiswick in London, England, which was represented by the manufacturers as being made of a substance as psychaloid, a form of celluloid, and advertised as being "tangible to spirit forces," described as "easiest material which spirits may handle, or rap upon," and as "the ideal material for construction of Seance Trumpets."
- Advert. for Psychic Stores (Jan. 1936) from Light (56.2870, p. 31)
- Perelman, S. J. (7 Aug. 1937), "Yoo-Hoo, Mr. Ectoplasm!", The New Yorker: 15, https://www.newyorker.com/magazine/1937/08/07/yoo-hoo-mr-ectoplasm