Identifying the extent and nature of the creativity of new products is a key for innovation management. The revised Creative Solution Diagnosis Scale (CSDS) is a 27-item scale based on a theoretical model of functional creativity, consisting of five main criteria: Relevance & Effectiveness, Problematization, Propulsion, Elegance and Genesis. The CSDS offers potential for differentiated assessments of product creativity as part of the larger process of innovation. Non-expert judges rated a series of mousetrap designs using a 30-item version of the CSDS. Confirmatory factor analysis revealed a simple structure that corresponded closely to the a priori theoretical model of functional creativity. The untrained judges were able to use the scale with a high degree of reliability and internal consistency. The scale offers a tool for managing innovation, especially for stimulating creativity and diagnosing the creativity of products.