Bill's casino in Tahoe still has two machines. You should ask at the main cages of Harrah's and Harvey's they may have $10's and $40's to sell. Also if Caesar's is still Caesar's Tahoe when you get there ask at the cage and they may have $10's and $40's to sell. Generally ask for a supervisor as some of the cage employees could care less or don't even know what you are talking about. It is a good idea to carry a strike in you pocket to show them what you are looking for.