"So she began to paint flowers all over the wall. They were large, substantial flowers because the brushes were large, and the dye soaked right into the plaster and looked intense and transparent." Quote from "Moominpappa at Sea" by Tove Jansson
Ham worked as an illustrator and drawer. Among other projects she designed banknotes for the Bank of Finland. She also designed all the Finnish postage stamps during Unlike Moominmamma Ham made a lot more than just housework.