I had my Vivian Ward (aka ‘Pretty Woman’) costume made from scratch using a wife beater, the blue fabric and some metal rings then having a seamstress put it all together for me.
I bought a green canvas bag (that i still use) black patent boots, a blond wig and a little black hat. I couldn’t really find the red blazer so i just bought something similar and draped it over my bag.
Jewelry- I just put my house key on a chain and some random silver necklaces and bracelets. The only bad part about the costume was that I starved myself for a month to wear it LOL! But got tons of compliments.