Geocaching Hidden Post Container

SO I like geocaching. And I have some property that has a PVC fence with 4"x4" PVC posts to hold up the rails...and they've little caps on them too that keep the water out. BINGO.

I designed this to fit perfectly inside the hollow PVC post (after you drill 1/4" holes OC on each side) and stay in place after the cover goes back on. I also included an "x marks the spot" type of lid to set on the cache....you know, to look cool. And keep spiders out I hope.

The cone shape of the bottom was to allow printing without supports and also to give enough depth to fit a normal-sized pen and small notepad.