During World War I and immediately thereafter, Migge designed sport park memorials, where the dead would be commemorated by youth participating in athletics. He rejected the grandiose prototypes for war memorials in favor of designs in which every grave acted as an individual flower bed, the totality of the scheme forming a garden. The food shortages of World War I also prompted an interest in the utopian ideal of an industrial city incorporating farm plots for everyone, an ideal outlined in Migge's 1919 treatise "Jedermann Selbstversorger" (Everybody Self-Sufficient).