How to Stop Your Kids from Fighting

my boys are 11 and 5 and never stop fighting so today i started thinking of some ways to get the fighting to stop. from on when they start fighting they have to sit on the couch and hold hands for thirty minutes. Now this my not sound like much but for to boys its know fun sitting around holding hands. also as they are holding hands they have to also look each other in the eyes. they are at the age where time outs no longer work i mean come on go sit in your room and get alone time they love it. you cant spank your children anymore the schools teach them to call the cops if you do. So its time to be creative with it and also make sure the punishment is entertaning for you. you can sit there and watch them squrim during the hand holding