These are unused tickets to one of the events. Tickets were free and they printed many more than they had audience seating in an effort to ensure all seats were filled. Tickets were also made in several different colors.

(scan courtesy Gaming Ore)

Gene Trimble, as the Palms representative for this Bravo produced event, may know more about the chip you are showing. Below is a scan (courtesy ChipGuide) of the 25 used in game play:

I do not know how these chips were used: (all scans courtesy ChipGuide)