After Brickfair Virginia 2019, I've grown to appreciate Brickheadz more, so much so that I've made my own for next year, themed after the leaders in Civ VI.
While these are renders (courtesy of stud.io), none of these parts are in unavailable colors, meaning that (hopefully) I can bring these to next Brickfair!
Teddy Roosevelt, President of the United States
Dom Pedro II, Emperor of Brazil
Mahatma Mohandas Gandhi, father of India
Peter I the Great, Tsar of the Russian Empire
Victoria, Queen of the United Kingdom and her Dominions
Hojo Tokimune, Shikken of Japan
Shaka, King of the Zulus
Suleiman I the Magnificent, Sultan of the Ottoman Empire