Made myself a PlayStation controller spool for PS1 and PS2 : r/3Dprinting
PS3 Controller Shell Swap From Ebay, Was It Worth It? - YouTube
Ps3 controller in original ps1 grey : r/PS3
Amazon.com: Brook Super Converter - PS4/3 to PS2/1, Support Switch Pro/Xb One/ PS5/ PS4/ PS3 Controllers on PS2/ PS1/PS Classic, Retro Consoles Controller Converter : Video Games
PS3 Build Your Own - Custom Controllers - Controller Chaos
Wireless upgrade mod kit for original Sony PS1 controller | 8Bitdo – ZedLabz
Enabling One-Handed PlayStation Controller Use for the Disabled - Core77