Amazon.com: Dualshock 3 Wireless Controller for Ps3 Charcoal Black : Video Games
Official Original Playstation 3 Ps3 Dualshock 3 Wireless Controller NEW | eBay
Amazon.com: PlayStation 3 Dualshock 3 Wireless Controller (Black) : Video Games
Amazon.com: PS3 Dualshock 3 wireless controller - White (Renewed) : Video Games
Sony PS3 DualShock 3 Wireless Controller - Electro Hive
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 :
Official Sony PlayStation 3 PS3 Controller OEM Original Authentic TESTED | eBay
Sony PS3 controller Dualshock 3 sixaxis original
Official Original Sony Playstation Dual Shock 3 PS3 Controller Multiple Colours | eBay