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 metallic blue piston comes from a Chevy engine. Its clock face has Arabic numerals and a silver ring, and it’s about 8.5 inches tall. This one arrived with a little character already built in — a small chip in the paint on the right side that gives 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.