This is pretty self-explanitory.
WARNING:This is real fire and I suggest adult supervision also I am not responsible if you get ingured attempting this instructable.

Step 1: Items You Will Need

You will need:
Altoids small tin

Lighter

dead grass

twigs

tools:
a hammer and nail

Step 2: Empty the Tin

empty the tin

Step 3: Make Holes

hammer the nail to make 9-12 holes

Step 4: Insert Grass

put the grass in the container

Step 5: Light

light and close the container for a heater ( put your hands over the holes)
or leave it open to burn small marshmallows.
It also works as a heat source for the pocket grill or pocket frying pan.