I built myself a mini wood lathe to experiment with. I used HDPE plastic from a kitchen cutting board, 4mm and 8mm aluminium sheet, some MDF and some nuts and bolts. Inkscape was used to draw out all the parts in 2d and Heekscad to generate the tool paths for my cnc. An old DC motor was used to spin the work piece.
I know it’s not pretty but works for mucking around.