Aluminum foil used withis a great inexpensive and super available substitute for .
!!! CAUTION: Unlike withyou can NOT simply overlap two pieces of aluminum foil, fusing one on top of the other to make an electrical connection. The fusible interfacing acts as an isolating barrier. In the case of conductive fabric, the porosity of the fabric allows it to partially absorb the fusible interfacing so that this technique makes for a relatively stable electrical connection.
>> See the Aluminum Foil Tilt Sensor for example application