We have recently published a pre-alpha version of a Ruby gem we are working on. It's called Active Explorer and you can find it on our Github: https://github.com/rascasone/active_explorer.
The gem helps you to print object's attributes and its associated objects during runtime. You can think of it as Awesome Print gem with also printing attributes of objects associated through :has_many and :belongs_to associations.
What do you think about it? Check it out and give us your feedback please.