This article furthers our understanding of how state and citizens interact to produce local institutions and examines the effects of these processes. It brings critical institutional theory into engagement with ideas about everyday governance to analyze how hybrid arrangements are formed through bricolage. Such a perspective helps us to understand governance arrangements as both negotiated and structured, benefiting some and disadvantaging others. To explore these points the article tracks the evolution of the Sungusungu, a hybrid pastoralist security institution in the Usangu Plains, Tanzania. It also considers the wider implications of such hybrid arrangements for livelihoods, social inclusion, distributive justice, and citizenship.