|Tea lights have several qualities that make them great for use as survival gear.|
IKEA has them for $3.99 per 100. Unfortunately, they don't sell this item online. You'll have to go into their store to buy them. If there isn't one near you, Amazon has them for $5.99 per 100.
Buy them now. They're cheap enough that you can buy lots. When you need them, you'll be glad you already bought them.