DualShock 4 Wireless Controller for Sony PlayStation 4 Jet Black 3001538 - Best Buy
Amazon.com: L2 R2 Ps4 Trigger Extenders (1 Pair L2 R2 Triggers, 4pcs Joystick Cap, 2 Pairs LED Light Bar Decal) for Playstation 4 Controller : Video Games
MAIL IN* PS4 - Scuf Battle Beaver Like - Basic button add on mod | eBay
Amazon.com: DualShock 4 Back Button Attachment - PlayStation 4 : Video Games
Custom Ps4 Controller Skin | Add images & text
LR L2 R2 Add-on Extended Trigger Button for PS4 Slim Controller Dualshock 4 TR | eBay
TSV Silicone Cover for PS4, Anti-slip Sweatproof Protector Skin Case Cover Fit for Sony PlayStation 4 PS4/Slim/Pro Controller, Controller Grip Cover Case with 8 Thumbstick Grip Caps - Walmart.com
Need more buttons for your PS4 controller? This gadget adds two on the caboose | TechCrunch