Edward's brother in law lost his arm and he wants to work with his son to design a prosthetic arm that looks like the Winter Soldier. Leo says to check out OpenBionics.com. He can also search for 3D-printed arms. It's becoming a huge space in the Maker community, as people are designing and 3D printing the prosthetic arms. Also, look at Raspberry Pi projects that use voice control. Check out ChatterBox, a DIY smart speaker that is a homebrew digital assistant.