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),
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.