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Thats why I put rubber bumpers under, and regularly treat with mineral oil.
The end grain one I have now is much better than the edge grain one that I had before.https://www.worktop-express.co.uk/worktop_accessories/Solid_Black_Walnut_Worktop_Chopping_Board.html
Making chopping boards from wooden worktop offcuts seems like a great use of spare wood, though all of these are edge grain (to be expected on worktops)
Bamboo boards are shit, they bow and smell weird if water gets trapped underneath.