Magnetic Hide a Key Cache

The Magnetic Hide a Key Cache , what a great repurposed use of a common item for a cache. Used many times on guard rails the world over, this one was painted silver to try and match the AC it was under, it did a good job, not easily noticeable from a distance. Although the MHK as it is better known in the hints of caches is small, you can sometimes fit something tiny and maybe flexible inside with the log, I've seen silly bands and paper clips? I've also found them not to be remotely waterproof, also they make nice nesting spots for small spiders!

MHK silver type