When an artist has a big show
Where he hopes to rake in the dough
He has a preview
Just for friends, mind you -
Vernissage to gloss his ego.*

Note: If you are attending a vernissage for the first time, beware of what you admire too extravagantly. You will probably end up owning it.

Bonus ALAD:

If you ever attend a debut
Of art at a friendly preview
Admire with restraint
The vernissage faint
Comes at home when you put it on view.

* Alternative ending:

She has a preview
Without much ado -
Vernissage to hear her friends crow.