Another good place to look for doll-sized furniture and prop items is Goodwill. I was there on Saturday and found two fun new pieces - first there's this great jewelry box:
It's a little small for the 16" crowd, but works well with Tiny Kitty:
The other piece I found is a shelf in the shape of a staircase:
And it is the perfect scale for my 16" dolls!
I'm going to fix it up a bit to make it prettier, and free-standing so it doesn't have to be secured to the wall. Stay tuned for future updates! I also have plans to turn an old broken chair into a doll-sized four-poster bed...