The only size record that needs no units is a handprint
A handprint printed at true size carries a measurement nobody has to convert into a number, and it's already wrong by the time it's on the shirt.
One handprint, deep red poster paint, pressed once and printed at the size it actually was. Fingers splayed, the coverage patchy across the palm, bare lines showing where the creases didn't take paint. Small beneath it: MARCH 2019.
A tape measure would have given the same fact in centimetres. Nobody would have felt anything looking at the number.
Why does the handprint have to be printed at actual size?
Because the size is the entire fact this print records, and resizing it for a better fit on the shirt deletes the fact.
A number in centimetres needs someone to already know what a hand that size looks like, which nobody carries around in their head. A handprint at true scale needs no translation — set your own hand against it and the comparison happens instantly, whether you're a stranger, a sibling, or the same child fifteen years later. Scale it up to fill more of the chest and it becomes a nice red shape; scale it down to fit round other elements and it stops being a record of anything specific.
Why keep the patchy paint and the smudged thumb rather than cleaning the shape up?
Because a clean vector hand is a symbol for a hand, and this print isn't a symbol — it's evidence that one specific hand was pressed onto paint once.
The thin coverage across the palm, the gap where a finger lifted early, the smudge where the thumb dragged before it left the paper — none of that is noise to edit out. It's the only part of the print that couldn't be redrawn later from a description. A tidied-up version would look better and prove nothing.
What makes a good version of this print?
Getting the true size and the date both onto the garment without either one softening into decoration.
The size does the measuring; the date underneath is what turns the measurement into a moment rather than a shape — MARCH 2019 is doing as much work here as the handprint itself, because a hand that size with no date attached could belong to any small child at any point in the last decade. Neither part is optional the way it might be on a print where the wording is just a caption.
Who does a child's handprint belong to?
The family — the print itself needs nobody's permission, since a hand pressed onto paint by a parent isn't anyone else's artwork.
The real question arrives later, the same way it does with a child's own handwriting on a shirt: a person grows into an opinion about a print made of them before they could agree to it. Some people are glad it exists; some would rather it hadn't been kept, or at least not worn out in public. Neither reaction is wrong, and the fair answer is to ask once they're old enough to have a view, not to guess for them permanently.
Does the same idea work for more than one child's handprint on the same shirt?
Yes — several true-size handprints together read as a size comparison, the same way marks ruled across a doorframe read as one once there's more than one name on it.
Two or three handprints from different children, or the same child a year apart, keep every individual measurement exact, because each one is still printed at the size it actually was rather than scaled to match the others. What changes is the reading: one handprint is a moment, several together are a sequence.
Isn't a handprint too ordinary an idea — most nurseries send one home every year?
A nursery handprint is usually a craft made by a class on a set day, cast in plaster or block-printed onto paper that goes in a folder. This is a specific hand's paint coverage, printed at true size, worn.
The difference isn't the idea, which is genuinely ordinary — pressing a hand into paint is one of the first things most small children ever do. It's what happens to the record afterwards: a photo gift gets displayed and stops being looked at within weeks; a shirt gets worn, which is a different kind of keeping than storing something in a folder.
Does it print well?
Yes — a single flat red on a light garment is exactly the kind of print that survives washing and distance both.
The patchy paint coverage translates as texture rather than a printing fault, because the outline of the hand stays a hard, closed shape even where the fill is thin. Fewer colours read better at this scale than a naturalistic render would — one red for the hand and a dark grey for the date is enough; the palm creases are close to the weave's floor and print more honestly a little coarser than the original paint allowed for.
How do I get one made?
Describe the print at JustOG — the paint colour, roughly how the coverage fell, and the date underneath. Pick a direction, drag the crop frame, see it composited on the real garment, and it's made to order and shipped.
Designs other people have published are in the shop.
The hand it was pressed from has already grown past it.