MegaGear Ultralight Neoprene Case for Nikon D3100-D3300, MG088
Amazon.com : Large Digital Camera / Video Padded Carrying Bag / Case for Nikon D750, D810, D5500, D750, D700, D3000, D3100, D3200, D3300, D5000 Camera & More : Electronics
Ikelite Underwater Housing for Nikon D-3100 Digital SLR Camera
Leather DSLR Digital Camera & Lens Case Bag Cover for Nikon D3100 D3200 Black | eBay
MegaGear Ever Ready PU Leather Half Case with Shoulder MG1045
Amazon.com : easyCover ECND3200B Camera Case for Nikon D3200 (Black) : Electronics
Soft Camera Video Bag For Nikon D3200 D3100 Silicone Case Rubber Camera Case Protective Body Cover Skin - Camera Bags & Cases - AliExpress
Leather DSLR Digital Camera & Lens Case Bag Cover for Nikon D3100 D3200 Black | eBay