A serial killers basement would always be a cool. You could have articles ("Cool Nutz Sells Out Arena"), Album Covers, Pictures of you with Celebrities, etc, all over the wall of some filthy, fucked up looking basement, with the eyes cut out and red X's through everything.....something to that effect.
You could add to it by having pics like, Your picture pasted on a firing-range target with holes all through the midsection. Then you could show a someone in a business suit delivering a speech, with a picture of you in the background on a projection screen with an X through it. Really highlight the fact that not only do "I" Hate Cool Nutz, but crazies, politicians, businessmen---EVERYBODY Hates Cool Nutz.
My 2 shekels.