Here's a quick tutorial of how I make my "enhanced" wax/lint fire starters.
Sorry I don't have pics.

Melt 1 lb paraffin wax. It's extremely flammable, so to be safe, do it this way.
Take a large tin coffee can that is bent in enough to form a pouring spout.
Put wax in can and set in large pan of boiling water to melt wax.

Take a CARDBOARD egg carton and in each section put a piece of dryer lint.
I roll some in a ball between my palms, you want a piece about the size of a large marble.
Have the lint in place in all sections before you add the melted wax.

While wax is melting, take those trick b-day candles that you can buy in party shops or even a good supermarket. There the kind that you can't blow out no matter how you try.
Cut each candle in half.

Pour wax into carton molds and wait till it starts to set, but not to long and stick the candle straight into the center of fire cube. You want it to get into the lint ball. It should stay straight up unless the wax is to hot.

Let them cool and tear into individual sections. Leave the cardboard on. I put a few in a zip lock bag and put one bag in all my packs.
Build a small tepee of little twigs/branches with fire starter under/inside it.
Light the candle and as the magnesium ignites it sets the small candle melting which ignites the dryer lint which sets the paraffin going. It burns very hot.
Will light wet wood and get the base going for a bigger fire.

I think in a pinch it would burn hot/long enough to heat water in small cup/pot for a quick warm-up in an emergency.