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 :
Buy For SONY PS3 Controller Bluetooth Wireless Gamepad for Play Station 3 Joystick Console for Dualshock 3 Controle For PC at affordable prices — free shipping, real reviews with photos — Joom
New Red PS3 Controller - Sony Playstation 3 Red Controller in Stock
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Dual Shock 3 (Black) for PlayStation 3
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Sony | Video Games & Consoles | Sony Playstation 3 Ps3 Original Oem Red Dualshock 3 Controller | Poshmark
Genuine Sony PlayStation 3 PS3 Blue Controller OEM DualShock 3 | eBay
PlayStation 3 Controller in Original PS1 Gray: Looks Just Like Grandpa
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Modifying the Dualshock 3: What Works and What Doesn't
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Restored PlayStation 3 Dualshock Black Controller (Refurbished) - Walmart.com
Sony Playstation 3 Dualshock 3 Controller - Black - Walmart.com
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Amazon.com: Lyyes Wireless Controller 2 Pack for PS-3,Double Shock,Rechargeable Analog Joystick,Remote for PS-3 : Video Games
Refurbished Sony Playstation DualShock 3 - Delfino Customs
Spotting a Fake PS3 Dualshock Controller
Amazon.com: PlayStation 3 Dualshock 3 Wireless Controller (Black) : Video Games
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