I was just at Harrah's Laughlin Thanksgiving weekend here are the keys i aquired from the front desk. the regular one you recognize then the one with yellow is for the # 1 tower where the Vip stay. you Must sign a waver you will not let any one under 21 in the tower there is a guard at the entrance. my do not Disturb sign said diamond and platium. but when i asked the maid for another for my collection she gave me a Vip sign. it seem to be different. there is another door key but they are locked up in the safe and they can not hand them out. only the supervisor. the colored ones are for teens and they change every week so no one can sneak into the pool. using the same one. they change whenever. any body have one different from Harrah's Laughlin. would be interested. some day hope to make a book on them. have over 220 different casino ones.