A **USB ESP8285 WiFi enabled HID hacking device** that gets fully (and stealthy) insertet into the USB port of your friend to unvolunarily move his mouse in Minecraft...
Look at: https://github.com/SinanAkkoyun/ESPUSB/
Documenting the design and manufacture of various electrical control devices, specifically designed from an electricians point of view. The goal being to make usable products that are convenient and easy to install and use. Open source, with designs document freely available, and cost effective to purchase or make yourself.