The fool-proof way to destroy Creationism lies within their own logic.
Everything in the Bible is taken as being 100% true. No metaphors. No synonyms. All word-for-word accurate, God's honest truth.
And they also state that all animals were created and no biological adaptation can take place and result in the formation of a new species.
Also stated in the Bible are the exact measurements of Noah's Ark.
Now, take the volume of every known species of non-flying, non-amphibious, non-marine (salt water, you'd still need to Ark freshwater ones) animal on the Earth today.
By Creationist logic, all those animals have always existed. And the only way they could still be around, thanks to there being no evolution, is if Noah physically saved them by bringing them aboard the Ark.
Now, double the volume of all those animals and I'm betting it's at least an order of magnitude greater than the maximum possible volume of the Ark, not accounting for required food, fresh water and waste.
Since there is no evolution, the measurements stated for Noah's Ark must be wrong. So the Bible is wrong. This is a direct contradiction of their morale foundation from which they take the high ground.
So even going by their own beliefs it doesn't make a ****ing lick of sense.