gistfile1.rb

module ViewDecorator
  include RailsViewHelpers

  def link_to_root
    link_to # ...
  end
end

# Most likely you won't do this because you need to
# pass some kind of data/state
@non_model_object = Object.new.extend(ViewDecorator)

class NonModelObject
  include ViewDecorator
end

@non_model_object = NonModelObject.new