S.L.
We went through this with our last. I put a television and dvd player in the bathroom. She spent 3 days living in there. I bought new dvd's and told her that she had to stay until she went. She stayed for 12 hours per day, 3 days in a row. She did go at the end of each day. But we repeated the day 2 times more because she just wasn't quite ready. She announced to me at the end of the finally day she was ready for underwear and she was not going to have any more accidents. She never did.
I cleaned her hands very well and cleaned the bathroom well. She thought she was having some sort of adventure. We ate in there, read books, and she enjoyed it. But yeah, she got tired of it eventually. For us it worked. Some kids would be miserable. I made a big deal out of it and explained to her why we were doing it. But, she was 3 when we did this. That 6 months may have been very important.
Suzi