Bar-coaster creativity has a long and proud tradition. Here’s the latest interesting twist on it—coasters made from the metal from real car wrecks, reminding bar patrons of the perils of drinking and driving.

Canadian agency Rethink made the coasters for advocacy group Arrive Alive. A hydraulic press shaped the pieces of former vehicles into coasters. Then, a message was laser-etched on them: “This coaster used to be a car. That car never made it home.”

The coasters are being used at Emmet Ray, a local whiskey bar in Toronto.

“Impaired driving remains one of the leading criminal causes of death in Canada,” says Michael Stewart, program director at Arrive Alive. “We wanted to remind people, on the biggest drinking night of the year, that there are consequences to driving drunk—and remind them to use a designated driver, take transit or download The Ride App for a safe ride home.”

Rethink and Arrive Alive have done a lot of cool stunts together, including putting wrecked toy cars as a sobering prize inside cereal boxes.

More pics of the coasters below.