There were only two toys I never got tired of -- legos, and computers. Both encourage open-ended creativity. (I had older lego house sets which were quite flexible. Modern lego pieces seem more specialized.) Unfortunately, so many pieces took several minutes to clean up, so I would just leave them spread out across my bedroom floor for months at a time. These days when I want to play with legos I put a bedsheet down first.

Also, I read another article from the author and subscribed just based on how concisely she expresses her ideas. She just gets her point across, then quits. I love it.