Hi everyone I like these unusual caches,
and some of the ideas on this thread are great,
I used an old PC disc drive fitted inside a hollowed out piece of wood, I removed lots of the origional componants and fitted a recording of the mission impossible theme, and used the open and close switches to open the tray and reveal a small logbook inside, this was then all put inside an old tree, its called secret squirrels logbook, GCJPX2. I love the idea of the screaming cache,
all the best Major Tom & Family.