Pen in GI tract for 25 years, still writes.
…she was standing on her stairs using an uncapped pen to poke a spot on her tonsils. She was also holding a hand mirror to guide the pen to the exact spot. Somehow, while doing this, she lost her balance and stumbled. The fall managed to push the pen down her throat. It glided down her gullet and found a home in her tummy.
She told her husband and her doctor what had happened, but they were skeptical of the story.
Source: cranquis