Antlers printed to the seams, not shrunk to fit
A stag's head fills an oxblood shirt with its antlers reaching both shoulders, because antlers are display equipment and shrinking them to fit removes the reason they exist.

A red deer stag's head, front-on, cream on deep oxblood. The antlers spread the full width of the chest, reaching towards both shoulders. Heavy flat shapes, one colour, no shading.
Nothing is scaled down to fit the shirt. The shirt is scaled to fit the antlers.
Why do the antlers run all the way to the shoulders?
Because that's the size they're actually for.
A stag doesn't grow antlers to be practical — they're regrown every year, carried for a while and then shed, purely to be seen: by rival stags sizing each other up at a distance, and by hinds choosing between them. Shrink the antlers to fit neatly inside a chest-sized rectangle and you've removed the one thing they exist to do. Run them to the seams and the shirt does the same job the antlers do.
Why does a stag's head read as a portrait rather than a diagram?
Because it's drawn front-on rather than in profile, and front-on is how you'd actually meet one.
A side view shows the antlers' branching structure more clearly, which is the choice a field guide would make. Front-on loses some of that clarity and gains something a guide doesn't need: it's the angle of an animal looking straight at whatever's in front of it, closer to what facing a stag actually feels like than a clean lateral silhouette ever is.
Why flat and one colour rather than shaded and detailed?
Because at this size, detail is the thing that goes wrong first.
A shaded, photorealistic stag's head printed antler-to-antler would need gradients across a huge area of fabric, and soft gradients are exactly what go muddy on cloth. Heavy flat shapes hold their edges at any size and read correctly from across a room, which a detailed version at the same scale generally can't.
Who owns the rights to a stag's head?
Nobody. A species belongs to nobody, and a drawing built from reference or imagination is the artist's own to print.
The one thing that does belong to somebody is a specific photograph — if a design were traced from a named photographer's shot of a particular stag rather than drawn from general reference, using that photograph as the basis is a permission worth having, the same as for any picture somebody else took.
Does the same logic apply to other antlered animals?
Yes — anything that grows structure specifically to be seen benefits from being drawn at the size that lets it be seen.
Fallow deer, elk, moose: the display logic holds even where the shape of the antlers changes completely. Two hares reared up nearly touching run the same argument a different way — two silhouettes filling the width instead of one, the gap between them doing the work the antlers do here.
Isn't a stag's head just a hunting trophy in a different format?
Not really — a mounted head on a wall is a specific object with a specific history behind it, and a printed one doesn't carry that automatically.
A stag drawn at full size on a shirt reads as a portrait of an animal that happens to have display structures worth drawing at their actual scale — the same reasoning a pike printed at true size uses for a fish. Nothing about the print says trophy unless somebody's already decided that's what a stag means to them.
Does it print well?
Yes, and the flat colour is why.
Cream on a dark, saturated ground — oxblood, bottle green, a deep charcoal — holds hard antler edges at full chest width without any of them softening into each other. One ink for the whole stag keeps the print sharp and the cost down; the only place worth a second colour is a small note in the eye, and even that isn't necessary.
How do I get one made?
Describe the animal at JustOG — the species, how far you want the antlers to reach, and the ground colour. 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.
Antlers reaching both shoulders, and nowhere left on the chest for anything else.