I read about this a long time ago and wanted to check it out for myself. For the past couple of years, my daughter's doll house was kept in our dining room. In part, it was so I could keep an eye on her and in part, because she wouldn't go downstairs to the playroom on her own. Well, we finally moved it downstairs a few weeks ago. I feel like my dining room has doubled in size! It is amazing, how that little house seemed to shrink the space. When we moved it, there were dents in the carpet. After vacuuming, they were still there. So, remembering that you could use ice to remove furniture dents from the carpet, I decided to give it a try.
I'd say that this trick worked for me!