I will say officially that duct tape, hot glue and cardboard are my best friends. :) I am less than a week away from presenting this dollhouse to my daughter and she is going to FREAK!
For the fridge I used:
a lasagna box
I also made a very imperfect garden today. I was one square of grass short (don't you hate that?) so I will have to go buy another sponge :/ I used popcicle sticks, beads, tops of sponges, and sample carpet from home depot for the dirt. In the grass area I am going to put a slide and a dog house.