Jimmy Fallon: Charlie Sheen "Winning" cologne (VIDEO)

(CBS) The self-imposed Charlie Sheen media barrage is so ever-present and so funny on its own that it almost doesn't need help from late night comedians. That hasn't stopped Jimmy Fallon, David Letterman, Jay Leno and Jimmy Kimmel from making cracks about Sheen and his behavior.

(Scroll down for Jimmy Fallon's "Winning" commercial)

Pictures: Charlie Sheen's ups and downs

On "Late Night with Jimmy Fallon," the comedian aired a fake commercial for "Charlie Sheen Winning" cologne, with Fallon playing Sheen. In his introduction to the ad, Fallon said the cologne's scent "combines the delightful aromas of sweat, cigarettes and denial."

David Letterman has been on the Charlie Sheen train for weeks. On Wednesday, he compared supercomputer Watson - who famously beat two humans in "Jeopardy!" - to Sheen.

In a video called, "Watson: Where is he now?," a narrator says, "He wasn't programmed to handle the harsh glare of the spotlight. After a 36-hour cocaine binge with adult film stars, Watson was fired by IBM. He was briefly hospitalized by what he claimed to be a 'herniated motherboard.'"

On "Jimmy Kimmel Live" Monday, Kimmel said, "Charlie Sheen, in case you've not been watching television today, has officially gone crazy. And not just a little crazy. Gary Busey thinks he's nuts." He then aired a one-minute compilation clip of Sheen's wildest lines followed by a compilation of Sheen saying the word "Winning."

And Jay Leno's most recent contribution to the Sheen gallery has been to joke that Donny Osmand is replacing Sheen on "Two and a Half Men," complete with a video of Osmond replacing Sheen in a bunch of clips.