jagatia:
Thanks mate, its very expensive for flex sensors.
Another source for flex sensors - if you can still find them - are old Mattel Nintendo PowerGloves; there are four sensors per glove (the pinkie finger wasn't sensed). PowerGloves are getting more difficult to find, but they can still be had - although they are become collector items, and the price is increasing (but per sensor, it might be worth it - plus you'd get a set of ultrasonic transmitters and receivers for other experiments, I suppose).
