I used some items I've saved from swaps with the Half Scale yahoo group and repainted some plastic furniture like the bed.
I also added some inexpensive wood kit furniture like the living room couch.
I made the fireplaces, and loved trying to make everything match the wallpaper in the blue toile room.
I made all the curtains and the kitchen cabinets. The kitchen table is also a small vintage plastic piece. I painted the top to make it look like an older metal-topped table to go with the wallpaper, and added a matching tablecloth.
As I bought the house already wallpapered, the fun part was adding flooring to divide the lower floor. I wanted to give each section its own look and give the whole floor a shabby chic feel.
Note: Half scale is roughly half the size of 1-inch scale. To give you an idea of size, the refrigerator is just under 3 inches tall; the couch is about 2 1/4 inches wide.