EMT Shears: Not only will they come in handy to cut bandages and cloth, but they can be taken apart for more heavy-duty cutting.
Rubber Boots: These are a must. And get the heavy duty insulated kind so your feet stay warm and dry. Because frostbite tends to suck.
Technically, this is incorrect. These are heavy metal bands, not types of heavy metal. Appropriate responses would be black, prog, hair and acid.