We knolled a hasbro I-DOG PUP and found some interesting and potentially useful sensors. The pup responds to hand motions above its head (petting) with a ceramic photoresistor that uses cadmium sulfide to conduct proportionally in response to light (which a waving hand obscures). We also extracted a sound sensor, a small speaker, a motor, a circuit board attached to seven colored LED lights and a bunch of miss matched screws!
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