If your dream featured sparkles in any form, it is reminding you that all that glitters is not gold, so don’t put too much confidence in smooth-talking new acquaintances, or any product or deal that promises instant results or fast cash.
Broken glass predicts a change in your life in some way, shape, or form, and it may, or may not be, beneficial for you.
If the broken glass sparkles in the light then the change will be for the better and, if not, it will be for the worse. Drinking from, or seeing, sparkling glassware is very good luck for the dreamer.... Encyclopedia of Dreams
Dreams of Las Vegas represent that you are taking a gamble on yourself, taking chances. This dream may be a warning to not loose your shirt, and to remember that all that sparkles isn’t gold. Also, don’t be fooled by impersonators. See Gamble.... Strangest Dream Explanations