By combining a Raspberry Pi Zero W (a tiny computer), Amazon's open-source Alexa Voice Service software, and a few other electrical components, I converted my normal Furby into a Furby Echo. I give you: Furlexa.
Read the full guide: https://howchoo.com/g/otewzwmwnzb/amazon-echo-furby-using-raspberry-pi-furlexa
Learn how to build a "normal" Raspberry Amazon Echo (without a Furby): https://howchoo.com/g/zjrhmjc4mwi/build-your-own-raspberry-pi-amazon-echo
The amazing background music is "Microchip" by Jason Farnham, from the Youtube Audio Library.