Brian Dereu and his family have a thriving cottage industry machining these pocket concealments from real currency and selling them online. I have one of their MicroNickels, shown above, and it may well be the coolest thing I have ever owned. It’s sized perfectly to conceal a Micro SD card, and when assembled it really is indistinguishable from a regular nickel. So, you know, just don’t lose it.
- Solid titanium dead drop spike
- Deluxe dead-drop spike in solid stainless steel
- Hollow spy bolts
- In the Makers Market: Dead drop spike