Sentence examples similar to vain fancies from inspiring English sources

FROM outside, the huge silver doughnut looks like a flight of vain architectural fancy, or perhaps a racetrack for very superior greyhounds.

And which are absolutely distinct from "vain desires" — aka passing fancies or things we wish for "in an idle way".

If you fancy replicating your own real-life visage (you vain thing you), look to creating 3D data files on applications like Cubify Capture and 123D Catch, before printing out the finished piece.

How vain.

Too vain.

Vain hope!

But in vain.

Parker chased in vain.

It was in vain.

We screamed in vain.

And he was vain, so vain.