The wax museum chose to immortalize the 20-year-old American model and 23-year-old British model Cara Delevingne for a special London Fashion Week exhibit that opened Feb. 13.
Jenner posed for photos with her double, who is rendered sitting in lingerie and a robe. The scene is set at London Fashion Week, although the model walked in lingerie in the Victoria's Secret Fashion Show in November.
"At first I was really freaking out, but now we're getting used to each other," Madame Tussauds quoted Jenner as saying.
Delevingne, meanwhile, appears on the runway in the sparkling Yves Saint Laurent dress she wore to the New York premiere of Paper Towns in July. A wax figure of Vogue editor Anna Wintour looks on from the front row.
"The experience has taken six months to develop," Madame Tussauds revealed on its website. "Around 20 artists worked on each figure and it took four weeks alone to create Cara's trademark eyebrows with each hair inserted individually by hand."
London Fashion Week kicked off Thursday, Feb. 18 and ended Tuesday, Feb. 23. Guests can still see Jenner and Delevingne at the museum, along with figures of Jenner's half-sister, Kim Kardashian, and brother-in-law, Kanye West.
Jenner is known for her work with Chanel and Balmain and for starring on her family's E! reality series, Keeping Up with the Kardashians. Delevingne also models for Chanel and will next appear in the movie Suicide Squad with Jared Leto.