I really like AvE (https://www.youtube.com/user/arduinoversusevil https://www.youtube.com/user/arduinoversusevil). Lots of really cool stuff if your into mecha

I really like AvE (https://www.youtube.com/user/arduinoversusevil https://www.youtube.com/user/arduinoversusevil). Lots of really cool stuff if your into mechanical engineering or really just making/breaking cool (physical) stuff.