Courtesy Photo (3); Max Mumby/Indigo/GettyThe Kate Middleton Effect struck again when the polka dot Topshop dress she wore to visit the Warner Brothers Studio in London sold out faster than you could say "RepliKate." If you weren't one of the lucky ones to snag the adorable fit and flare dress, don't worry-we picked out three similar styles that will have you feeling and looking like our favorite royal. From left: Score a similar Topshop style with slightly different dots ($76 at nordstrom.com); mix textures with print with ModCloth's polka dot and lace ($60 at modcloth.com); and reverse the hues in this white-on-black version by Dorothy Perkins ($29 at dorothyperkins.com). Which style is your favorite? Let us know in the comments!