Meanwhile cult leader and swastika enthusiast Charles Manson spent his alloted arts and crafts time painting, sketching and making spiders out of yarn and string. In fact he scribbled down two pages of instructions on how to make a genuine Manson yarn spider, all in his native language of crazy.

Page three details how the yarn spider should be stored in a cool dry place and continuously fed the blood of innocents.

Who would collect this?
There are no exact figures but the sale of murderabilia is hugely successful online with daily transactions at MurderAuction.com and DaisySeven.com, whose slogan "Where crime pays. Everyday." just barely beat out the alternative "For people who masturbate to CourtTV".

Louisiana mortician Rick Stanton was a pioneer in selling murder doodles and organized the first art exhibitions of famous killers' work. Stanton is considered by many to be the originator of the collectible craze, saying the murderers' art is, " ... the stuff where the feelings are everything, where the person is everything ... They're not concerned with trends, or with sales in the art world."

Another piece by Charles Manson

It should be noted that serial killers probably aren't concerned with sales mostly because of laws that prevent them from making any money. In 1977, a little doggy told David Berkowitz he could make a truckload of cash from a tell-all book, and publishers came running. These events lead to the formation of "Son of Sam laws," which prohibit a felon from profiting off their crimes, and preventing mediocre art school students from going on a killing spree.

Also, a brief analysis of the works by the killers themselves shows no correlation between depravity and talent. It turns out a shitty painter will remain shitty even after disemboweling a hobo. For instance:

Above is an orgy skull dreamed up by Gacy when he got tired of painting clowns. Yes, it's a skull made of dongs. This is way scary, and not laughable or pathetic in the least.

This depiction of a mermaid tickling a shark was miscarried into the world by killer Charles Ng, whose body count totaled over 25 people. He felt the compulsion to bring more suffering into the world and designed the poster for Jaws vs. SPLASH!.

Who hasn't held a Nazi tea party now and then?

Who would collect this?
We should point out right away that it's not just neo-Nazis collecting this stuff. There's plenty of attraction for history buffs and antique collectors who want nothing to do with creepy guys in Prussian Blue concert tees.

Still, the obsession with the Nazi trinkets borders on fetishism in some circles, as in recent years when SS Christmas cards were sold at auction along with a negligee belonging to Eva Braun.

Rare bottle of Hitler wine: 4,000 pounds

EBay has refused to deal in Nazi memorabilia and Yahoo! was sued over a past auction of Hitler's speech notes. Of course, like porn, the taboo is part of the appeal. Maybe that's why they started selling new Nazi merchandise a few year ago in Hong Kong.

"Pickled Punks" was carnival slang for jarred fetuses that were put on display at sideshows. Normally the fetus would feature some type of abnormality, because an abortion crammed into a Mason jar intended for sweet Georgia peaches wasn't shocking enough on its own.

Who would collect this?
If you're thinking it's illegal as hell to own these, you're right. C.M. Christ (not to be confused with Jesus H.) learned that in 1977 when his baby freak show was raided by police and he was arrested for the illegal possession of human remains.

You want to play around with the dead? You need a mortician's license and even then you can't charge people for looks, even though that's kind of exactly what you do with a funeral, but with all the money being paid by the people who were most affected by the death. So what's a modern pickled punk collector to do? Give up their terrifying collection? Hell no! They buy rubber replicas, of course.

They're called "bouncers" by collectors, because the rubber replicas will bounce in the jar. If you shake the jar of your newly bought fetus and the thing inside doesn't bounce off the bottom, somebody is probably going to jail.

The replicas range from $65 to $200, so go ahead and spice up the cubicle, just like this guy:

OK, so number one could be considered rather unsafe for work, so we're going to put it behind a link. Yes, that's right a third page, and this time we have a reason, maybe the best reason we've ever had for adding a third page to an article: there are detailed representations of genitalia on the way.

Ready?

Sure?

OK ...