This is a sophisticated example of a jailhouse shiv; most are made from primitive materials like chicken bones, sharpened toothbrush handles, and melted and hardened trash bags or Styrofoam cups. Their never-ending inventiveness adds a touch of comfort, order and beauty to an otherwise barren and unpleasant environment. They are incredibly detailed and intricate, especially for their size: Temporary Services Being locked up for long periods of time makes you miss a lot of things, not the least of which is sex. Interesting Ideas As mentioned above, prisoners often use art to occupy their time while incarcerated. The chocolate and caramel are extremely hot and harden very quickly, making them painful when they hit and difficult to get off of the skin. Temporary Services Whether it was meant to be used for making art, tools or weapons is a mystery, but this mini-lathe is a great example of how prisoners use the items around them to make ingenious machines. Some prisoners even coat their weapons in feces to increase the chance that the victim will develop a painful and dangerous infection. When rolled up, it looks completely innocent. A wire is taped to the negative side of the battery; when you want a light, just touch the other side of the wire to the positive side of the battery and the exposed bit of wire in the middle heats up. Interesting Ideas Believe it or not, these vibrantly-colored motorcycles are all made of garbage and scavenged items by Chip Jarrett, an inmate in Michigan. Candy bars are melted down on hot plates and the molten mess thrown into the face of the victim. While she said she didn't personally make or use a DIY dildo, she reported that her fellow inmates melted down soap in arts and crafts classes and molded them into dildos of various sizes and sold them along with jewelry and other items. Marc Steinmetz If you manage to get hold of some weed in prison, finding a way to smoke it is the easy part. Marc Steinmetz Prisoners tend to be pretty patient, given that most of them have plenty of time, so when they want to make something they are able to collect the pieces they need over time. Marc Steinmetz This terrifying-looking blade, concealed in a crucifix, was confiscated from an inmate in a German prison.