Carving jigs for the most part were not quite what I wanted. So I came up with the idea of using a towing ball, they are readily available in hardware and auto shops. It's a fairly simple device that locks from underneath with a simple screw set up, fully rotatable, and can swing off the perpendicular about 130°, and the flat base is rotatable allowing the jig to be swung out in any direction, nothing really fancy but does all I need.