are crafted with precision from empty Bic lighters or ice cream sticks.

Cooking is perhaps where prisoners show the most innovation. In Italian maximum-security prisons, the Moka coffee maker

It’s not just small-scale cell hacks; some inventions created behind bars have changed the world. Did you know the as we know it was invented in a cell? In the 1770s, William Addis was serving time in London’s Newgate Prison when he took a small animal bone and glued bristles to it. Upon his release, he founded Wisdom Toothbrushes , a company that still exists today. Why It Matters Prisoners' Inventions | Prison Photography

is the "Swiss Army Knife" of the cell. According to Cooking in Maximum Security , inmates use these tiny stovetop espresso pots to brew much more than coffee, inventing entire recipe books for pizza and strudel using only what they can find in a 6x9 foot cell. Famous Inventions Born in Chains