Dolly Cohen is a jewellery designer based in Paris. She specializes in custom mouth jewellery and has created grill designs for Madonna, Rihanna, Rita Ora, Drake, and Cara Delevingne. Cohen worked as a dental technician before turning to grills around 2005. Cohen's grills are handmade to fit the teeth and jaw of the wearer. She makes the grills with . She makes a print and a plat, then sculpts a mold out of alginate. She uses yellow or white 18K gold. She takes one day to make one gold tooth and refuses to recreate oral jewellery she has made in the past. She maintains a laboratory in Paris' seventh arrondissement.