Hobbies built around constructing scale models or small craft, most of them ultimately operated or flown, a maker-and-tinkerer hobby in Stebbins' typology. Belongs here: model railroading, model rocketry, free flight model aircraft and fingerboarding, the last grouped here as a miniature-scale build-and-operate hobby rather than with the full-scale board sports it visually echoes. Does not belong here: miniature wargaming, whose miniatures are painted for tabletop play rather than built to operate, grouped under Tabletop and Strategy Game Hobbies.