A small (45mm dia) piece from available offcuts for a club competition inspired by a Sue Harker demo. A glued sandwich of rosewood and roughened 1mm pewter sheet with an edge groove cut on the lathe for a 6*1mm marquetry inlay strip (
http://www.originalmarquetry.co.uk/) glued in. Offset turned for the secondary hole and resulting metal circle, done carefully with a 12mm bowl gouge in drag mode. Not perfect, in that the wood tends to be uneven on the metal boundary where the angle is too slight - might do better another time (although this was try 2!). The marquetry strip would break bent to this radius as supplied but is surprisingly easy to steam bend to shape (grid in saucepan above a little boiling water for a few minutes). Then held with a tight plastic cable tie, both for cooling after bending and again to glue. The back is just gently rounded. Finish food safe oil.
Pics attached of the tie stage and the offset jam chuck (naturally one remembers to include a pencil hole in the back of the chuck centre to evict the piece but does one remember to extend it to allow for the offset!?).