Box of 25) G50 TRANSPARENT BLUE C9 (E17) Base Light Bulbs - Hometown Evolution Inc.
Luxrite 60-Watt EQ A19 Blue Medium Base (E-26) LED Light Bulb in the Decorative Light Bulbs department at Lowes.com
EcoSmart 40-Watt Equivalent A19 Dimmable Filament Blue Colored Glass LED Light Bulb (1-Pack) FG-04242 - The Home Depot
Thomas Edison Light Bulb Patent - Blueprint" Greeting Card for Sale by FinlayMcNevin | Redbubble
15 Pack S14 LED Bulb Blue 1W S14 Edison Bulb Shatterproof Blue Colored Plastic Outdoor Indoor Filament Replacement Bulbs E26 Base Decorative LED String Light Bulbs for Wedding Party Home(Blue) - Amazon.com
Northlight 10ct Red White and Blue LED Edison Style Lights 9ft White Wire | Wayfair