murderabilia
 n.— «The Chicago Cartoon and Poster Co., 1941 W. North Ave., specializes in limited edition posters, pop culture collectibles, underground publications, adult comics, T-shirts, and “Murderabilia” (like John Wayne Gacy paintings).» —“The Undersee World of Pop Culture” by Jeff Huebner Chicago Sun-Times Jan. 14, 1994. (source: Double-Tongued Dictionary)