Field guide No. 1234
The unsettled birch
Shedding at the roots.
A pale birch on a rocky slope above a lake has unrolled its bark into curled scrolls around its base, leaving the trunk bare. It has apparently been reading too long.
Field noteBark unrolled into scrolls around a bare trunk. Birch bark does peel, though it does not volunteer to be read.
Also possible, also breaking category
Pomegranate packed with ruby diceSeeds that are dice: still a fruit, still dice, just a fruit doing a game’s job.
Burgundy mushroom’s spore fanA fan can fit inside a mushroom cap. The spores have a little industrial assistance.
Private screeningPegged to a washing line, a sheet plays a storm. Nobody asked for a cinema; it had a spare wall.
Sweet beaconLighthouses come in odd shapes, and plastic bears can be lit from inside. Shipping would adapt.