Field guide No. 049
Avo conservatory
Stone replaced by greenhouse.
Half an avocado on a sunny terrace holds a glass conservatory where the stone should be, full of plants, with a little staircase up.
Field noteGlasshouses fit in odd places. The pit was the obvious vacancy.
Also possible, also breaking category
Envelopes blooming in lavender twilightStationery that grows in rows is horticulture miscast. Unprecedented, but not a contradiction.
Eggs spill from a rotary phoneA receiver carries sound, not eggs. Wrong cargo, sound telephone.
Unravelling plansAny envelope that holds hot air will fly. Wool is a poor choice, not an illogical one.
The marble cometA marble with a silk tail is a craft project. Calling it a comet is the only overreach.