Reuters: Madame Tussauds has replica figures of royals, Hollywood stars, top musicians, global politicians and record-breaking sportsmen at its various wax museums. And in a world of growing social media, it is now adding YouTube personalities to that list. Madame Tussauds in New York has unveiled a wax replica of popular vlogger Jenna Marbles, who has more than 15 million subscribers on her YouTube channel. The wax figure is also the first one taking selfies.