This study examines co-creation prototyping with LEGO and low-fidelity materials. 122 people from the fields of design, the pure sciences, forestry, and tourism are involved in this 6-hour co-creation program. The advantages of early design prototyping with LEGO and low-fidelity materials are examined in this study. LEGO and low-fidelity materials enable multidisciplinary participants to explore, analyse, and modify ideas in three dimensions, validating design solutions, idea formulation, and idea evaluation. It can be concluded that LEGO and low-fidelity materials are good co-design prototyping tools for team and strategy building because they motivate members to participate more during group discussions, manage design modifications, and demonstrate new design directions.