Note: FactCheck.org has analyzed both the sink ad and the Titanic ad.
UPDATE: A reader writes:
Well, what kind of animal metaphor would you come up with for Social Security? "The Future is like a Lion: It EATS the old, sick, weak members of the herd!" "Social Security is like having a snake in the toilet, it can really bite you if you aren't paying attention, but if you think about it the answer is quite simple (sound of toilet flushing)" "Social Security reform is like putting a weasel in your freezer: it just Doesn't Make Sense!" "Social Security is like a goldfish; it will grow to fill whatever tank you put it in."
I think I'll leave it to my readers to email me some Social Security animal analogies. Thanks for getting us started.