This paper explores the role of toolkits and their material characteristics as a vehicle for generating impact through sustaining insights and ways of working from Living Labs. Using toolkits to sustain findings within Living Labs is not new, but literature concerning their characteristics and expectations by Living Lab actors is scarce. The paper outlines the primary role toolkits play concerning co-learning in Living Labs, how they can be designed through a reflective design ethnographic practice and highlights essential characteristics of toolkits when used to sustain findings into other contexts. This is done by reflecting on the design of two different toolkits focused on the design of future smart mobility services from a facilitator perspective, as well as interviewing stakeholders from the public and private sectors regarding their expectations of the role and characteristics of said toolkits.