If I were designing the perfect childhood toy, it would have two major components. First, it would inspire imaginations to encourage make believe and storytelling. Second, it would be open-ended so it could be played with in numerous ways, which means it would be played with often and be a beloved toy for years.
Take the Painting Teepee from Pacific Play Tents for example. This clearly isn’t just a high quality teepee, it’s a childhood haven. As you can see, it's the kiddos fort.