Triangles or nothing — the cut is not up for negotiation
A sandwich cut into triangles beside the same sandwich cut into rectangles, the rectangles struck through in red — the one thing about lunch a child controls completely.

One sandwich, cut two ways, seen from directly above. On the left, corner to corner into two triangles. On the right, the same sandwich cut into two rectangles — struck through with one flat red line.
A child controls almost nothing about how the day goes. The shape of lunch is one thing they control completely, and the crossed-out square is the whole argument, in one image.
Why show the wrong cut struck through instead of just printing the right one?
Because a single correct triangle sandwich on its own would read as decoration — the refusal is what turns it into an actual position rather than a nice picture of lunch.
Put the rectangles next to the triangles and cross them out, and the print stops being about food and starts being about a rule. Take the rectangles away and it's just two triangles, which could be anybody's sandwich cut any way at all.
Is there anything to sort out before printing a habit this specific?
No permission to chase — it's the household's own record of a preference, not a copy of anybody's design or anybody else's story.
The only real question is whether the household is comfortable having this particular pickiness on show, which is a smaller version of the question that runs through this whole material: some families would print it in a heartbeat, some would rather keep it private, and either is a reasonable call about a fairly harmless habit.
Isn't getting this specific about a sandwich a bit much?
Not if the specificity is the actual subject rather than a joke about it — the rectangles aren't refused because they taste different, they're refused because the shape is wrong, full stop.
That's the same instinct running the five-step bedtime order, scaled down to lunch: a child fixing on one small, controllable, arbitrary rule and holding it absolutely. The arbitrariness isn't a flaw in the preference. It's most of what makes it a real preference rather than a taste.
Does this work for a different non-negotiable — a cake shape, a seat at the table?
Yes, and most households have more than one of these once you start listing them.
Who sits where at a family table is often exactly as fixed as the sandwich cut, down to which chair is simply wrong for a particular child to be in. A birthday cake can carry the same design logic — the way it's iced matters as much to some children as the way it's cut. The mechanism travels; only the object changes.
Does the rule ever change, or is it fixed for good?
It changes, usually without warning and without the child announcing it — one day the triangles stop being the issue and something else has quietly taken their place.
There's rarely a conversation about it. Someone notices weeks later that nobody's mentioned the cut in a while, by which point the print has already become a record of a preference that's over rather than a description of a current one — true of most of the household rules this specific, not just this particular sandwich.
What makes a good version of this if my own child's non-negotiable isn't sandwiches at all?
Pick the actual rule, not a tidied-up version of it — the crust off but only on one side, the plate a specific colour, the drink poured before the food arrives.
The temptation is to generalise a household's rule into something more universally relatable. That's the wrong direction. The oddly specific version is the one that's true, and truth is what makes a print like this land rather than reading as a generic "fussy eater" joke aimed at nobody in particular.
Does it print well?
Yes — flat filled shapes with one clean colour break between the sandwich and the strike-through line hold up well on fabric.
Two colours does the whole job: one for the bread and filling, one red line for the refusal. A short, deliberate palette usually prints better than a busy one anyway, and here it also happens to be exactly what the image needs — nothing about this design benefits from a third colour.
How do I get one made?
Describe the cut at JustOG — the shape that's right, and the shape that gets crossed out. 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.
Cut it into rectangles once, by accident, and watch how fast the whole plate comes back.