Amazon.com : Dual Macro LED Ring Light/Flash Compatible with Nikon D3100 (Applicable for All Nikon Lenses) : Electronics
Amazon.com : Nikon SB-24 Speedlight Flash : On Camera Shoe Mount Flashes : Electronics
Amazon.com : Nikon D3100 Bounce, Zoom & Swivel Head Flash + High Powered AC Rapid Charger with 4AA 2900 Mah Batteries + Nwv Direct 5 Piece Cleaning Kit : Digital Camera Accessory Kits : Electronics