The Fisher Space Pen
https://history.nasa.gov/spacepen.html

For Project Gemini, for example,
NASA ordered mechanical pencils in 1965 from Tycam Engineering Manufacturing, Inc., in Houston.
The fixed price contract purchased 34 units at a total cost of $4,382.50, or $128.89 per unit.
That created something of a controversy at the time, as many people believed it was a frivolous expense.

Do you understand?