I created this arcade style joystick adapter that can be attached to the “Joystick Module Game Console Dual-Axis XY Joystick Module KY-023”.
You will have to print it in two parts, the ball and then the joystick rod. This gives you the ability to make the ball a different color for that more retro look. 

The item used for this project is purchased off amazon:
Amazon.com: 6 Pack Joystick Module Game Console Dual-Axis XY Joystick Module KY-023 Control Stick Sensor Board Compatible with PS2 Arduino Raspberry Pi : Electronics