Paris is in fashion! Fashion loves Paris! Just pick a T-shirt or a pendant with Tour Eiffel and you are in fashion! Easy?! Try to keep the rest outfit girly and give a romantique note to the whole look. Think the colours of the french flag to match accessories, if the T-shirt is black and white! You can complete the look by finding a nice bistrot and drink hot chocolate!
Paris T-shirts you can find in Zara, Topshop, Forever21, Asos, urban outfitters, luisa via roma or at tourist shops in Paris :p