This boredom-relieving pen is able to shape-shift its entire metallic body from solid to crushed and then back again with a simple flip of a switch.
This pen writes like normal, but the ink disappears when heat is applied and can be made to reappear when placed in the cold.
These flexible pens are the same ones used in most US federal prisons to make it nearly impossible to do lethal damage with. Also great for pockets.
These normal black ink pens have miniature planters on the caps that are filled with seeds that grow actual living plants and grasses.
This innovative highlighter uses classic yellow ink that fades away completely without a trace after five months.
The pen is now truly mightier than the sword and it even works in space!