Field guide No. 300
Clamshell cornflakes at breakfast
Part of a balanced breakfast, and a pearl.
A bowl of cornflakes where every flake is a little clam, opening on a pearl in the milk. Crunchy, then expensive.
Field noteClams in milk instead of flakes: wrong breakfast, perfectly possible clams.
Also possible, also breaking category
The spool viaductRope bridges are thread, slightly more of it. The spool supplies the rest.
Pea tendril holds the lineCoiled cord and pea tendril were always the same shape. One merely started growing.
Molting umbrella on a wet shop floorUmbrellas are made, birds moult. A category slip with a handle.
Zest expressTrains take whatever body you weld onto them. Citrus is a livery, not a paradox.