A completelely pointless item, in all honesty;

A lighter made from a matchbox that allows you to strike a match using only one's thumb.

Step 1: Gather Your Parts and Plans.

You will need a old piece of wood,(the same thickness as the inside of a matchbox),
a matchbox,
sand-paper,
glue

and detailed plans.

Step 2: First Cut.

Mark out an area the size of the inner box.

Cut out that area.

Discard the inner box.

Step 3: Second Cut.

Roughly mark out an area using thirds as a guide.

Cut this out and we'll call it "part 1."

Step 4: Third Cut.

Cut out a matching piece.
But leave a gap the size of a match-head between the two parts,(SEE PHOTOGRAPH).

(The two parts when put together should be the size of the inner box.)

Step 5: Drill Hole.

Drill a hole ,in part 2, that just allows your match to be pushed in up to the head.

Step 6: Glue Things On.

Glue on a piece of sand-paper to the striking suface of part 1.

Glue some sand-paper on the back of part 2, to give your thumb some purchase and for aesthetics. (NOT ALL THE WAY ALONG,AS SHOWN; just the last third.)

Step 7: Glue in Part 1.

Cut a tab out of the side of the matchbox.

Glue part 1 in the matchbox.

Step 8: Assemble.

Slide part 2 gently in.

Hold matchbox as shown until some one asks you for a light.

Push thumb forward until it lights.

Rotate wrist until flame is upright.

Remove match and re-load.

Await the the unlikely event of someone else asking you for a light.

Enjoy.