Chukka is a kinetically powered, tactile personal music player. It has been the result of research into the link of tactile interaction and repetitive physical motion with relaxation and mental stimulation. The inspiration behind the final product came from the Greek komboloi and begleri (worry beads), adopting both the subtle, and highly energetic techniques of use, through electromagnetic induction, for the powering of the device. The product's unique form intrigues its user to interact with it, both whilst listening to music and whilst not, in turn providing its power. Thermoplastic polyurethane creates the outer casing, a material that is energy efficient in production, effective to recycle and has many other advantages, as well as tactility. Stainless steel comprises the inner casing giving weight and durability. A highly flexible data cable links the two sections together giving the device its unique form and functionality. The device requires no adhesives and its design incorporates disassembly for repair, end of life, and in the encouragement of user customisation.