IHG Rewards Club has 1,500 bonus points “Next Stay Bonus” promotion for one stay.
Note that this offer is from 2013, but seems to still work for those that have not previously registered for it.
Note that this offer is combinable with all the other IHG Rewards Club promotions that you can find here.
This promotion did work for a new IHG Rewards Club member in 2014 that had not previously taken advantage of this bonus points promotions. It did not, however, work for my account that already did it in 2013.