Guys and dolls: traders show off their latest toys

Alexander Duszat, known as Elton, blows a table tennis ball during a competition to promote a new game called Schlag den Raab Photograph: Michaela Rehle/Reuters Photograph: Michaela Rehle/guardian.co.uk A JK Rowling doll Photograph: Daniel Karmann/EPA Photograph: Daniel Karmann/guardian.co.uk Passengers in a model railway station Photograph: Miguel Villagran/Getty Images Photograph: Miguel Villagran/guardian.co.uk A robot prototype that plays table tennis Photograph: Daniel Karmann/EPA Photograph: Daniel Karmann/guardian.co.uk Front and rear views of Barbie video girl, which features a camera on it's chest broadcasting the images to a screen in its back Photograph: David Ebener/EPA Photograph: David Ebener/guardian.co.uk A USB cable is inserted into the back of the Barbie video doll Photograph: Miguel Villagran/Getty Images Photograph: Miguel Villagran/guardian.co.uk Designer Alexander van de Rostyne kisses his four-channel indoor toy helicopter Photograph: Michaela Rehle/Reuters Photograph: Michaela Rehle/guardian.co.uk Barbie dolls depicting tennis player Kim Clijsters and her daughter Jada Photograph: Miguel Villagran/Getty Images Photograph: Miguel Villagran/guardian.co.uk A model railway Photograph: Miguel Villagran/Getty Images Photograph: Miguel Villagran/guardian.co.uk A new version of Monopoly with a round board and electronic devices Photograph: Daniel Karmann/EPA Photograph: Daniel Karmann/guardian.co.uk