I had to improvise a stove. This is a little hinged craft box on its side, and I painted the silver square and "knobs", and the burners are silver buttons glued on with gorilla glue.
I also had to improvise the couch. I found a half circle plastic container and cut it down for the frame. I intended to have a pattern for this, but had to alter it and change it so much as I went that a pattern would never have worked. You could also make a couch without an inside frame and just stuff it well to make the shape.
I did the floors from individual stick on squares I found at a hardware store for about 69 cents each. I used tin shears to cut them to size,but I did lay down newspaper first to make a pattern for that.