I was at Morongo this afternoon and ended up with a couple of house-mold $5 chips, CG # 153278. Turned them in to a cashier and she shined a little gizmo on the chips. Immediately they glowed a brilliant yellow-white color and tiny words MORONGO appeared all over them. She even did it again for my amusement when I mentioned that was a cute trick. UV light, I presume, so if any of you have a UV generator and some of the current Morongo chips, you can try this for yourselves. Suppose each denomination of the current set will "do something" similar.