I made this stitching pony a couple years ago from one I saw in a picture, yet added my own mods to better suit my needs.  The one I saw was fixed, but I put a swivel base so I could turn the work while sitting on the wings in a chair and sewing or while the base was clamped on the work surface as shown.  I also added a pair of rare earth magnets, one on either side, to HOLD the needles when I needed to adjust or change the work's position in the clamps so they didn't drop off the thread.  I use