Marriott Rewards has a promotion for 10,000 bonus points per night at Powerscourt (Autograph Collection) hotel in Enniskerry, Ireland, between January 1 and March 13, 2014.
You need to book Sika Dining Experience rate and stay Tuesday, Wednesday, Thursday or Sunday nights and use promotional code M12 at the time of making the reservation.
You can access this offer here.
It is weird that the terms this offer state that the it is not available during the weekends, but the availability only exists on Fridays and Saturdays.
You have to consider that the dining experience is a lot higher than the discounted rates available, but does include 10,000 bonus points per night.
Here are the terms and conditions of this offer:
Guest must book reservation using promotional code listed above in order to receive bonus points. Offer applies to one regular room per stay, per member on dates listed. A “hotel stay” or “stay” means all consecutive nights spent with Marriott by a registered Marriott Rewards member. Offer not available during special events; tax is additional; special offers cannot be combined; blackout dates may exist; advance reservations are required. Offer does not apply to groups of 10 or more rooms. Members electing to earn miles are not eligible for this promotion.