I'm working through Complete list of encyclopedia topics/K at random, but trying to avoid places and people. So far I've started: K56flex -- Ka-25 -- Ka-50 -- Ka-bar -- KAB-500KR -- KAB-500L -- Kabaddi -- Kabbalah -- Kaber -- Kabir Bedi -- Kabuki -- Kadiogo -- Kagoshima -- Kaiser Wilhelm Geschutz -- Kainite -- KAIST -- Kaj Harald Leininger Munk -- Kajang -- Kakorrhaphiaphobia -- Kalahari Desert -- Kaleidoscope -- Kali -- Kalmia latifolia -- Kalohi Channel -- Kalsilite -- Kamacite -- Kamagraphy -- Kanaris -- Kanchenjunga -- Kandahar -- Kanem-Bornu Empire -- Kangaroo -- Kansas-Nebraska Act -- Kansas City -- Kaohsiung -- Kaolinite -- Kapok -- Kaposi's Sarcoma -- Kara Sea -- Kara-Kum -- Kara-Su -- Karachi -- Kareem Abdul-Jabbar -- Karel Hynek Macha -- Kariba Dam -- Karl Benz -- Karl Gustav Ahlefeldt -- Karst -- Kaspar Schwenkfeld von Ossig -- Katanga -- Katers pendulum -- Katharometer -- Katherine Hepburn -- Kawasaki Ki-56 -- KCMG -- Kellogg-Briand Pact -- Kemo-Gribingui -- Kemp Town -- Kendo -- Kenilworth Castle -- Kennelly-Heaviside Layer -- Kerberos -- Keflavik -- Kerguelen Islands -- Kekule von Stradonitz -- Kermit --Jerome David Kern -- Kern County -- Kernite -- Kerosene -- Kenny Dalglish -- Kesgrave -- Kestrel -- Ketamine -- KGB -- KHAD -- Khios -- Khyber Pass -- Khmer Rouge -- Kickapoo -- Kidney --Kidney Stone -- Killer whale -- Kim Il Sung -- Kim Philby -- Kingfisher -- Kingsley Amis -- Kipchoge Keino -- Kirlian photography -- Kissing Bug -- Kitt Peak National Observatory -- Kitty Hawk -- Kiwi Fruit -- Kiyoshi Atsumi -- Kliment Yefremovich Voroshilov -- Knout -- Know-Nothing movement -- Knud Johan Victor Rasmussen -- Knute Kenneth Rockne -- Kolmogorov-Arnold-Moser Theorem -- Konstantin Eduardovitch Tsiolkovsky -- Konstantin Ustinovich Chernenko -- Krugerrand -- Krupp -- Krzysztof Penderecki -- Kublai Khan -- Kumquat -- Kundalini -- Kunzite -- Kurt Waldheim -- Kuomintang -- Kvass -- Kwame Nkrumah -- Kyanite -- Kyushu and a few others.
Basically look for any short K article that is brief and looks as if it was written by someone ignorant of the subject - then it's one of mine! Also compare the complete lists to Proberts on-line encyclopedia - it's all very similiar, especially the abbreviations.
Naval Space Surveillance System, this was a K too. Kickapoo -> Lake Kickapoo -> NAVSPASUR.
Adrenal gland - fell off the back of a kidney. John Ambrose Fleming from Kenotron. Catharine of Aragon from Katherine of Aragon. Christopher Houston from Kit Carson. Chagas disease from Kissing Bug. Great Rift Valley from Kenya. USS Kitty Hawk and Curtiss P-40 from Kitty Hawk.