Embodiments relate to coupling and/or holding devices for electrically and/or mechanically contacting circuit elements, such as power sources, sensors, transducers and other devices. In one embodiment, a coupling device comprises a substrate having at least one printed conductive element and at least one fold, flap, slit, slot, perforation or other alteration configured to encourage contact between a circuit element, such as a battery, sensor, transducer or other element, and the at least one printed conductive element.