Kin made a lego theme park with bumper car n bumper boat. It also equipped with ticket booth n control booth. He copied the idea from his brother but I must say that he did a good job visualising the theme park. He even arranged the lego figurines queuing to buy ticket. We could see the lego figurines holding diamond in their hand as Kin said they pay the ticket with diamond. He then created 2 bumper cars which were smaller and cost lesser.