An easily concealable universal handcuff key

DISCLAIMER I do not condone using this thing for illegal purposes. It is to be used only for a greater understanding of security and for self-defense (like if you are kidnapped or something)

They have SUDO printed on the top

You: Please let me go
Kidnapper: No
You: SUDO please let me go
Kidnapper: OK

PS For some reason the SUDO does not print on my machine, perhaps as the letters are too small to show up.

INSTRUCTIONS:

1. Print as many as you like (they only take 7 minutes on my replicator)
2. Use as stylish cufflinks
3. Get kidnapped
4. Use them to unlock your handcuffs
5. Escape to safety
6. Print a replacement set (I have not tried them out, but due to them being plastic, they are probably single-use)

Some clean up work may be required due to the small size of the object. I used a really thin screwdriver to unclog the hole in the middle of the key.