Dalton Ghetti is a carpenter in Connecticut who creates extremely small sculptures on the tips of pencils:
Dalton uses a razor blade, sewing needle, a sculpting knife, a steady hand and lots of patience to meticulously carve the graphite which can take anywhere between a few months to a few years.
He’s been practicing this craft for over 25 years, and has a “cemetery collection” of broken works in progress. There are maybe 15 pictures at the link above. My favorites are the interlocking ones, like the key or the hearts.