using System;

public class Program

{

    public static void Main()

    {

        var kottan = new Kottan();

        kottan.PlayWith("ball");

        kottan.PlayWith("candy", "toy");

    }

}

​

public class Kottan

{

    public void PlayWith(string thing) 

    {

        Console.WriteLine("Playing with {0}", thing);

    }

    public void PlayWith(params string[] things)

    {

        Array.ForEach(things, PlayWith);

    }

}