There is a gunshow dealer in the Southwest that sells mostly surplus items. Not necessarily military surplus, but a lot of odd items of questionalble utility. Most every item has a description and scenario of its possible use.
An example, placed on a box of tiny gauze bandages (seen just prior to the '94 AWB enactment):
"So, there you are in the kitchen canning vegetables, when out of the blue come blue-helmeted UN stormtroopers marching down your country lane. They take an interest in your humble abode, and you decide without hesitation that you won't be taken alive. Running to the closet to grab your M1a, the JBTs are already on your front lawn. You take careful aim through the likeliest avenue of approach (the front door), and begin to express your righteous indignation by way of your trigger finger. Sensing correctly that you are in a tactically untenable position, you bust out the rear kitchen window and make a hasty withdrawal.
On your way out the busted-out window, you might cut your finger on broken glass. THESE GAUZE BANDAGES WOULD BE JUST THE RIGHT SIZE. 25 cents ea., or 6 for a dollar."