(FOX) — An Idaho artist’s attempt at humor and social commentary with a shirt design combining Idaho and California set off a war of words online between Gem State natives and California transplants.

On Thursday, Scott Pentzer posted photos of his daughter, Hannah, and son, Jake, modeling “Idafornia” shirts on the Boise Buy Sell Trade Facebook group. The artist said the shirts were intended to provide a commentary on the number of Californians moving to Idaho, most of whom are fleeing that state’s notoriously high cost of living and high taxes, according to a report.

The shirts were advertised as $12 for a short sleeve shirt and $15 for long sleeve.

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