It started when an anonymous Imgur user found an “old Integra cylinder head laying around the shop, collecting dust,” which they “dis-assembled and decided to put it to use again.”
Combining these with “valves, valve springs, spark plugs, castellated nuts and pipe fittings,” and then “trimming down and welding together the parts, before polishing them up and applying a coat of paint” produced a gorgeous set of chess pieces in black and gold.
Car chess set
[Imgur]
[Lewin Day/Hackaday]