Amazon.com: Sony Dualshock 3 Wireless Controller (ps3) : Video Games
Restored Sony OEM Metallic Gold PS3 Dualshock 3 Wireless Controller For PlayStation 3 (Refurbished) - Walmart.com
Sony DualShock 3 Wireless Controller for PlayStation 3 - Styles May Vary | GameStop
Amazon.com: PlayStation 3 Dualshock 3 Wireless Controller (Black) : Video Games
Amazon.com: PS3 Dualshock 3 wireless controller - White (Renewed) : Video Games
Official Original Sony Playstation Dual Shock 3 PS3 Controller Multiple Colours | eBay
Official Genuine Original Sony Dual Shock 3 PS3 Controller Blue | eBay
Original PS3 controller Dualshock 3 Wireless Black free shipping 711719947585 | eBay
Amazon.com: Dual Shock 3 Controller for Playstation 3 PS3 Classic White, 99013 : Video Games
Official Original Sony Playstation Dual Shock 3 PS3 Controller Multiple Colours | eBay
Official Original Sony Playstation Dual Shock 3 PS3 Controller Multiple Colours | eBay
Amazon.com: PlayStation 3 Dualshock 3 Wireless Controller (Black) : Video Games
Original PlayStation 3 Wireless Controller - Color For Sale | DKOldies
I bought a sealed dualshock 3 and it's genuine (tested with MGS HD collection) so I figured maybe it can help you as a reference when looking for original ones online :
VOYEE Controller Replacement for Sony Original PS3 Controller, Wireless Controller Gamepad with Upgraded Joystick Compatible with Sony Playstation 3 (Black) - Walmart.com