Something Different: A New Lens | AF-S Fisheye NIKKOR 8-15mm f/3.5-4.5E ED Lens | Nikon
Some Assembly Required: Hugo Cardoso's Panolgikon (panoramic + Holga + Nikon) — Online - Don't Take Pictures
Amazon.com : Opteka .35x High Definition II Super Wide Angle Panoramic Macro Fisheye Lens for Nikon 1 AW1 J1 J2 V1 V2 S1 J3 - Works with the Nikon 10-30mm / 30-110mm