Hi della - where are you staying? When I checked in at SSR last month, the CM completely neglected to give me the entire "Welcome Home" packet! I went back and asked for one, and there was no problem, but, hello!
So this is from last month, and I haven't heard of any changes, but here is what my hard-won Portable Perks from January says about DTD Marketplace shops:
Arribas Brothers - 10% on unique works of art (certain restrictions apply)
Basin - 10% on all merchandise
Ghirardelli Soda Fountain and Chocolate Shop 10% on soda fountain, chocolate and retail gift purchases
House of Blues Company Store: Save 10% on merchandise items (not including sale items).
Rainforest Cafe Retail Village: Save 15% on merchandise (not including sale items).
There are also discounts on the west side and dining discounts as well.
Have fun!