http://lasvegassun.com/news/2016/may/29/casino-promotions-may-29-june-4/
A few more tidbits I got from the slot clubs -
Palms - Mystery Multipliers May 31-June 3 - We must take the kiosk voucher to the slot club for this. (This was not necessary sometimes previously.)
Tuscany - Free Play Fridays - There are five levels we can earn. Lowest is $5 for earning 500 points. Highest is $100 for earning 10,000 points.
Tuscany - Scratch and Win Saturdays - We can earn a max of four scratch cards each Saturday for 250 points each.