Automobile owners in Amsterdam are waking up to find that their cars have been ‘customized’ overnight with cardboard and masking tape. Suddenly, their boring old sedans boast body fenders, spoilers, grilles and hood scoops. You’re welcome, says artist Max Sidentopf, creator of the ‘Slapdash Supercars’ project. Maybe the new additions won’t even survive a quick trip down the street, but that’s not really the point.

“Individuality, self-expression, and status are more important than ever these days,” Sidentopf tells Vice. “But for some reason you see that things as ordinary as cars are getting personalized less and less, while it could be a strange but great form of self-expression. I thought I’d do people a favor by giving them a custom-made supercar.”

The result is undeniably goofy, and the reaction of the owner is probably a test of both their sense of humor and how precious they are about their vehicles, since not everybody is crazy about the idea of strangers clambering all over their cars and leaving tape residue behind after the customizations have been removed.

It’s a simple prank, and a funny way to remind people of the creative possibilities in each day, whether you have any desire to actually pimp your ride or not.