I came across this project when I viewed the Orge Kickstarter page. Note that I am not a patron of said project, nor am I endorsing it.
DARTER - A Micro Pen with a hidden secret
https://www.kickstarter.com/projects...?ref=discovery
Disclaimers aside, it's a key-chain sized, refillable micropen that includes an emergency sewing kit. It's advertised as an addition to one's Every Day Carry (EDC) kit. But come on, look at that picture. We all know this is a nefarious villain's cover story for micro dart gun. Your Espionage characters should be facing this in the near future.