This replaces "Remembering Mr Clark (GC1G0KD)" which was recently muggled into oblivion. Rather than simply replace it and tempt fate —and the muggle— again, I've placed another of the BYOB series. In case this is your first one of these (and it being the one closest to Town, that is likely) a little explanation might be in order.
The idea is to place a cache where it's practically impossible to hide a conventional cache (BYOB1 is the prime example), but make it available only to those in the know. My solution is to construct stout steel enclosures that can only be opened by a secret key. That key is the ubiquitous nine volt battery. Apply one of these to the very obvious terminals and... well, you will see.

There is the traditional FTF certificate included, and for no particular reason the initial swaps are frogs, including a framed portrait of that geocaching hero, 'Signal the Frog'.
Congratulations to Team Noodles for finding this cache before I even knew it had been listed!
A WORD OF WARNING ABOUT 9 VOLT BATTERIES!: Don't allow the terminals to come into contact with metallic objects! This will short circuit the battery and flatten it. It will also create a fair amount of heat. So putting your battery in the glovebox or your pocket with things like keys or loose change is not a good idea.
Some manufacturers sell them with a little plastic 'keeper' to protect the terminals. Keep the keeper! Or put some tape over the terminals or pop the battery in a plastic bag. Then you will be safe and can continue logging BYOBs!
(This cache was placed with the permission of the Denmark Shire.)