There is an argument from an infamous evangelical minister named Ray Comfort. Mr. Comfort argues that the banana is an example of intelligent design, because of the following reasons:
"The banana is shaped to fit into the human hand.
It comes with a protective, non-slip surface to hold.
It is curved towards the face for ease of consumption and does not squirt in one's face during the act.
There is a "pull tab" at the top for easy access, but is easier accessed by pinching the bottom and opening from that end.
It has a simple colour code to show ripeness: Green; too early. Yellow; just right. Black; too late."
~ http://rationalwiki.org/wiki/Banana_fallacy
You can watch him talk about it here.
The reason that this argument is fallacious is not because it doesn't point to intelligent design, but because he associates the intelligent design with God.
I did not know this, but apparently that bananas, as we know them, have been selectively bread for close to 10,000 years!
This is what bananas look, naturally. For thousands of year, we've been selectively breeding bananas in order to make them conveniently edible for us! Those seeds you see in the picture are not edible.
Mr. Comfort has been confronted with this information, and has back-pedaled greatly, saying the whole thing was a joke. You can be the judge. You can read the article I read here. And go ahead and explore the site more while you're there. There's a lot of good stuff!