Also, @Dr.Strangelove = Peter Sellers from some movie of his.
@Charlie_Tan : I don’t know the original source, but the image was used in En Vogue’s music video for “Free Your Mind.” I even started a thread in 2018 asking where the image in the music video came from. (Keep in mind, this was before Discourse, when the SDMB did not have easily-accessible avatars.) Unfortunately my query was never answered, but maybe Charlie_Tan has an answer!
I have a little tin dope box with Vincent’s smoking skeleton printed on. I saw it (after having seen the original) in the Amsterdam Van Gogh Museum’s souvenir and art shop as a box of mints for two Euros or so and just couldn’t resist. I guess that around 63 percent of buyers use the box for the same purpose as I do.
A Google reverse image search tells me that it is a drawing named The Great Yawner by the French architect Jean-Jacques Lequeu.
Now for my own attempt at (mis)identification: @Horatius - a cat (or dog?) wearing a fedora and sunglasses, dual-wielding handguns.
Mind blown. I cannot believe that this is a drawing from before 1826, it’s so freaking modern. Looks like the illustration for a Kafka novella.
I think Kent Clark’s avatar is reversed.
It’s New World Order Kitty. He was the main character in a series of comics I (and a few others) made several years ago. This particular image was from a comic where NWO Kitty was trying to re-brand himself with a “new cool Matrix-type” image. The problem was, posing with his guns like that was really tiring.
We made the comics using an online comic generating site that is no longer available. But we got a lot of good stories out of it. Some are still here.
Oh, that explains a lot! When I saw your avatar, I immediately noticed its resemblance to Fekete Macska, a comic strip by a friend of mine that ran in the free Budapest entertainment magazine Pesti Est back around 2004. I guess you and my friend must have used the same generator.
It’s quite possible. I’m pretty sure the site was hosted somewhere in Eastern Europe, and there were quite a few Europeans on the site. I had one fan in Poland, a teenager who did his own kind of surreal comics.
Nobody wants to take a crack at my avatar? 
No one wants to take a crack at mine, either. Such a mystery! 
It’s a distorted Yoda, isn’t it? (or a Gremlin)
No, actually it’s a crab, or so I suppose.
No one wants to acknowledge your carcinization problem.
Oh, dear. Now I’m even less inclined to come out of my shell. 
I’m sure you can claw your way out!