They should be strong enough to withstand being stepped on without bursting or blowing off the cap. Metal screw-top fuel bottles are the safest, but because the mouth of most fuel bottles is small you'll also need a bowl or cup to hold fuel for dipping your torches. Airtight metal container for torches and other fire equipment. A metal tool chest will smother the flames on your torches, will store them safely, and will keep them from spreading soot all over everything. A cylindrical metal food-storage canister holds Fyreflys nicely, and is airtight enough to extinguish flames immediately.
Fireproof clothing is hard to find.
Sometimes a fireman's used Nomex or Kevlar approach suit, or a racing driver's old suit is available for a few bucks. Plastics and artificial fibers are very dangerous because they catch fire or melt quickly, and will mix with burning flesh so that healing is more difficult. Cotton, leather, and wool can eventually be absorbed as your body heals. Skin, especially after you work up a bit of sweat, is not very flammable, but it can be scorched and singed. Rayon, nylon, dacron, etc.