After reading ironraven's post, I checked out Sandisk flash drives, and yes, they still make the titanium. They claim it is crush resistant up to 2000 lbs. and it has a retractable USB connector...no cover to lose!

If anyone else is interested, here it is.
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Ors, MAE, MT-BC
Memento mori
Vulnerant omnes, ultima necat (They all wound, the last kills)