Stockings are where gift budgets go to die. You need six small things per child, you are buying them in a hurry, and the default options are a bag of plastic that gets swept into the bin by the second week of January. It is the one part of Christmas shopping almost nobody enjoys.

The problem is not the price ceiling. Plenty of genuinely good things cost under $25. The problem is that small gifts are usually chosen by category — "something to fidget with", "something with their favourite character on it" — rather than by whether the kid will pick it up twice.

The test a stocking stuffer has to pass

Before buying anything small, ask three things about it:

Eight that pass

1. A slushy cup

Freeze it overnight, pour in whatever cold drink is already in the fridge, squeeze it for about a minute and it turns to slush. No ice, no blender, nothing to plug in, nothing sharp or hot. It clears all three tests: it works immediately, it works again every day, and a seven-year-old can do the whole thing without help. Ours is $24.99 with free shipping and comes in four colours.

2. A proper deck of cards

Not a novelty deck — a real one. It survives being sat on, works on a car journey, and does not need charging.

3. Refillable water bottle stickers

Cheap, and they turn an object the child already owns into one they chose. Better value than another bottle.

4. A head torch

Unreasonably popular with anyone under twelve. Reading under the covers, garden at dusk, power cuts.

5. Modelling clay that does not dry out

The kind in a tin. Unlike air-dry clay it does not become a rock in the box within a fortnight.

6. A magnifying glass

Sounds dull, gets used constantly, costs almost nothing.

7. A recipe pack they can actually follow

Something with steps short enough to read alone. Our recipe packs are PDFs, so they arrive by email — useful when you have run out of days.

8. Good hot chocolate

The flaked kind rather than powder. Small, consumable, and gone by February, which is the point.

What to skip

Anything that needs a specific battery you do not already own. Anything whose entire appeal is that it is a miniature version of a bigger thing. And multipacks of small plastic figures, unless the child is already collecting that exact line — otherwise you have bought six things that are individually meaningless.

If you only buy one

Pick the thing that makes something they already do slightly better, rather than introducing a whole new activity. Kids do not need another hobby in December; they need the drink in the fridge to become a slushy. See the full SlushyFun gift guide for more, or start with the cup itself.