OK... forgive me if this seems a little bit vile... but I can't help but notice that BB and other posters might be missing something even bigger than the re-invented invention.
Is it just me, or does MAD's illustration of the doggie doo freezer thingy look like something you might see in... oh... let's say a 10th grade biology textbook? Isn't it also an illustration of the male reproductive system?!
I think not.