The Princess' Pea

Origin
This pea was used in the fairy tale The Princess and the Pea to test a princess's physical sensitivity. The fairy tale was created by Hans Christian Andersen, and was first published with three others by Andersen in an inexpensive booklet on May 8 1835 in Copenhagen by C. A. Reitzel.

Effects
The pea, when touched, gives its owner heightened physical sensitivity. They become so physically sensitive that they can feel things from far away. However, the pea only works on females.