This is a $12 comic book themed keyboard sticker set sold by Etsy seller Killer Duck Decals. Pictures of the stickers originally showed up in this Reddit thread with no other details, so after three seconds of internet sleuthing (including one second to tell an idiot friend to stop sending me cat gifs through Facebook), I found the source. It's literally the third link when you Google 'comic book keyboard'. Now I'm not saying I deserve a key to the city for my investigative work or anything, but a pat on the back would be nice. Lower. Lower. "That's your ass." Now give it a pinch and call me Mr. Mayor.
Hit the jump for a closeup.
Thanks to ChaosLex, who agrees the coolest keyboard stickers are those glow-in-the-dark stars I had on my ceiling in high school. And college. And presently.