I've been playing around with something similar, making hand gestures and using bendy resistors for finger movements also. Still just a thing I'm tinkering with, but I'm using https://www.adafruit.com/products/1714 and https://www.adafruit.com/products/1070 with an arduino as my starting point, using https://www.adafruit.com/products/1381 for audio playback.