US Patent 7584895 Transactional cards with sensory features

Transactional cards such as credit and debit cards include sensory features including sounds, sights, and/or smells to increase the interest in the transactional card. A transactional card may include circuitry for producing sounds such as sound effects, songs, and catch phrases. A transactional card may include circuitry for producing light, such as illuminating the account numbers and/or producing graphical displays on the card. A transactional card may include coatings or integrated materials that provide scents or that change color when heat is applied. A transactional card may include additional sensory features such as a lenticular array with underlying image.