DRV8871 Motor Driver
https://www.adafruit.com/products/3190
PAM8302 Mono Class D Amp
https://www.adafruit.com/products/2130
MAX98357A I2S Class D Amp
https://www.adafruit.com/products/3006
Micro USB Breakout
https://www.adafruit.com/products/1833
LiPoly Backpack
https://www.adafruit.com/products/2124
Mini Adafruit FX Audio Board
https://www.adafruit.com/products/2342
All these and more in the Adafruit Fritzing Library: https://github.com/adafruit/Fritzing-Library