Recent industrial design should prioritize the customer's sensory experience in addition to technical functionality. It's important to optimize sensory inputs and consider how the senses interact. Synesthesia research benefits innovative design by incorporating both common cross-sensory processes and genuine synesthetic processes. All products need a multi-sensory design to ensure a coherent appearance across all senses and enhance user feedback. Synesthesia fosters collaboration between art, design, and science. The multi-sensory approaches developed at the Bauhaus during the 1920s and 1930s show that attention to the arts supports innovative design.