How to whiten a yellowing keyboard

Tools used in this video :
Hydrogen peroxide: https://amzn.to/2K5OmTS
UV LED strip: https://amzn.to/2IqLmOA
PS/2 to USB adapter: https://amzn.to/3c5S6PG
5 pin DIN to PS/2 (the adapter I made): https://amzn.to/2KSitfO
Power source: https://amzn.to/35zDBzT

Other tools:
ROTARY TOOL: https://amzn.to/2WF75I6
PRESS FOR ROTARY TOOL: https://amzn.to/2Uiv1Eu
2-AXIS TABLE FOR THE PRESS https://amzn.to/2WPkttl
POLISHING KIT: https://amzn.to/31w983l
CORDLESS DRILL: https://amzn.to/2Wois77
CHUCK NORRIS’ TOOTHBRUSH: https://amzn.to/2YfXUj2

MY FILMING GEAR:
MAIN CAMERA: https://amzn.to/2JvtKox
MAIN TRIPOD: https://amzn.to/2OlpYgn
MICROPHONE: https://amzn.to/2I80iDz
VIDEO LIGHTS: https://amzn.to/2FpJDaB
MAIN LENS: https://amzn.to/2Fm8yMk
CINEMATIC LENS: https://amzn.to/2TmNdHH
WIDE ANGLE LENS: https://amzn.to/2U7iJha
GOPRO: https://amzn.to/2U3eqU3