Amazon.com: 1 to 6 Outlet Splitter 50 FT Extension Cord, 3 Direction Multi Outlet Splitter for Christmas and Holiday Lighting, 30 Ft Reach Plug to End, Outdoor, Indoor, Weatherproof, Landscaping : Tools & Home Improvement
Iron Forge Cable Outdoor Extension Cord 10 ft with 3 Outlet, 16/3 Green Outdoor Extension Cord Waterproof Cable with Multiple Outlets 3 Prong, Great for Christmas Lights and Outside - Amazon.com
Do it 15 Ft. 18/2 Christmas Tree Extension Cord - Handy Andy Home Warehouse
9' Christmas Tree Light Extension Power Cord - 16/2 - 3-outlet Tap - Extension Cords & Plugs
Amazon.com: SURAIELEC Outdoor Extension Cord with Multiple Outlets, (34+6+6+6) 52FT Total, 40FT End to End, 1-3 Outlet Cord Splitter, 16/3C SJTW, for Landscape, Christmas Light, Halloween Decorations, Green : Tools & Home Improvement
The Best Extension Cords for Outdoor Christmas Light Displays | Family Handyman