The postcard in the S@H Holiday catalog I received in the mail yesterday lists a 15% discount for purchases of any two and a 25% discount for any three or more of the following:
10185 Green Grocer
10187 VW Beetle
7746 Drum Roller
6241 Loot Island
And the $99 free shipping still applies.
I've been eyeing the VW for my brother for Christmas, so now I can essentially get two Loot Island sets with it for free with free shipping. It would also be a good way to stock up on Green Grocers, if I was buying gifts for myself!
All you have to do is add them to your online cart, and the discount is calculated automatically. I believe the postcard indicates validity through 12/31, but they reserve the right to cancel the offer at any time.