Window shopping is going to get more interesting with these new-age mannequins. Stars could get paid for their look-alike mannequins. Thanks to 3D printing and robotics, Madam Tussauds will see its art commoditized. Here is Louis Vuitton promoting the 93-year-old Japanese artist Yayoi Kusama while hyping good old polka dots at the Harrods Departmental Store in London.