Marquee signs are usually place over the entrance of a theater, which has become a decor element for loft and industrial style. It is therefore not obvious to find antiques ones, much less at reasonable cost. The good thing is that you can make your own personalized one. Have a look for more inspiration a those fab' tutorials and brightens up your house with an original shape or word.
DIY marquee sign // A Beautiful Mess
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DIY upcycled marquee sign // Mountain Modern life
Make a lighted marquee heart // Tatertots & Jello
DIY marquee sign // Homey Oh my