delegation.rb

require "delegate"

class ObjectDelegator < SimpleDelegator
  undef_method :class, :object_id
end

def Object.delegate(object, delegation)
  ObjectDelegator.new(object).tap{|x| Array(delegation).each{|m| x.extend m } }
end

 module Greeter
  def announce
    "this is the #{self.class} #{self.name}"
  end
end

module UpcasedGreeter
  def announce
    super.upcase
  end
end

class Person
  attr_accessor :name
end

p = Person.new
p.name = "George"

g = Object.delegate p, Greeter

puts g.announce

ug = Object.delegate g, UpcasedGreeter

puts ug.announce

ugg = Object.delegate p, [Greeter, UpcasedGreeter]

puts ugg.announce