Wow this should be not allowed! When geocaching I would think you would want people to be cautious of snakes & this has you poking what might or might not be a real snake. Funny at first could be dangerous later.
This would be a neat idea for a micro. Instead of a log in a baggie in the walnut, the logbook is the walnut. You'd probably have to use Rite in the Rain waterproof paper though since with no cover, (Diy Ornaments Box)