Field guide No. 584
Scissors cutting their own blade
A self-sharpening problem.
Against a blue background, a pair of red-handled scissors curls one of its blades off in springy steel ribbons, cutting itself as it closes. Very sharp, briefly.
Field noteScissors cut what goes between their blades. These peel one of their own blades into curls.
Also possible, also breaking physics
Red leaf carves a frozen bow waveA red leaf cuts a narrow wake through frozen water. The river has kept one current open.
Red canoe in impossible anglesTwo halves of a canoe meet at an angle no hull would choose. It folds where it likes.
Soft landingDandelion seeds fly well, up to a few milligrams. Cabins sit outside the specification.
Blue water, held by fireFlames push up only heat. These hold up a bowl of water without boiling it or being put out.