I've 4 old pistons that are either going to recycling centre or could be of use for someone with a project in mind for up cycling. Can't offer you an engine coffee table but they may have a use for someone with vision who wants a car that still works while making a centre piece for the house out of 4 pistons. Coat hooks?

sorted all the answers

https://www.google.com/search?safe=off&q=uses+for+old+pistons&tbm=isch&source=univ&sa=X&ved=2ahUKEwiDzbKfq7XjAhUiSxUIHaL9ACkQsAR6BAgIEAE&biw=1366&bih=657

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Black X Reg PIII.VGTi 6 A4212 pt 1 A4212 pt 2 Searching the streets of Bristol for 1.36p/day.

Joint Kent Leader