I ended up with a nice length of polypropylene 2×4 which begged to be turned. I like to experiment with alternative materials and as I often say, I’ll turn anything (well not salt – see Peter Brown for that!). This turned like butter and sanded like wood. The lid was a teak one I had made two years ago and had been sitting on my workbench all this time waiting for a purpose. It is a nice snap fit and I don’t have to worry about shrinkage and expansion on the pot.