This is an incredibly sketchy way to change the gear on your character. It's temporary, I promise!
* First, copy the code from an item you wish to add from the list below.
* Next, enable the customization beta on the web version by typing 'customizationbeta' while in the main menu.
* Two new menu options should show up. 'Create gear' and 'Change gear'. Click on 'Change gear'.
* Paste the code into the input field that reads 'Gear code' and click 'Add'.
* Click 'Back' and your gear will be saved to your computer.
Check out this Newschoolers article for an in depth explanation.