This isn’t a specific project, so much as a pointer to a budding new site. Puppet Circuits is the project of [Raphael Abrams], one of the co founders of NYC Resistor. As you can probably guess, he has been posting about the circuits he uses in his animatronic puppets. I faces all kinds of problems since may of the systems are to be worn and have to endure some pretty rough treatment and still perform well. Very interesting stuff to read about.