Most engine pistons spend their lives converting explosions into motion. These have moved on to a less stressful career.

Handcrafted in Pennsylvania by Edward Plazek of Man Cave Plus, each desk clock starts with an actual engine piston and connecting rod. Add a clock face, and suddenly a pile of automotive parts has opinions about your schedule.

This purple piston likely came from a Chrysler Corporation 360 V8. Its clock face has Arabic numerals and a gold ring, and it’s about 10 inches tall. This one arrived with a little character already built in — a couple of small chips in the paint on the left side that give it an authentic, been-around-the-block look.

Each Piston Clock is painted by hand, battery operated, and arrives with a AAA battery installed. Felt pads on the bottom protect your desk, because even repurposed engine parts have standards.