This paper aims to investigate the usefulness of LEGO and other materials as prototyping tools in the co-creation process involving multiple stakeholders. The results demonstrate that using LEGO and other materials as prototypes in the co-creation process helps designers and stakeholders to explore, evaluate and modify ideas three-dimensionally to validate design solutions, idea generation and evaluation. This study believes that LEGO and other materials are efficient co-design prototyping tools to ensure its main purpose for team and strategy building in enhancing participant's ability to deliver more contribution during group discussions.