Octopushat 2.0

Over at I Fought the Law, Matt has a post about cleaning his trunk.  During this purge he runs across the “oldest material possession, or at least the thing that [he's] owned for the longest time” and I thoguth this might be a nominally interesting blog-meme for our little corner of blogistan.  So, what is the THING that you have POSSESSED for the longest amount of time (hereafter referred to as ‘OMP’)?

I’m a bit of a packrat, and have a few contenders.  I have a  journal that I’ve owned and used off-and-on since I was 12 (1990,) I have a Swiss Army Knife that probably dates to around the same time, but I believe my OMP would be “A Field Guide to Insects” that I would pour over when visiting my Nonie in Louisiana as a very young (5? 6?) boy.   I’ll try and take a picture of it this evening.

Your turn.