I made ones similar to the ones pictured above in the coehorn photo. Being unable to forge from one piece of stock, I cut the teardrop shaped stock with a torch, drilled holes for the bolts and handle stock, bent the handle stock to the correct shape, and welded the handles on to the teardrop pieces.
BTW, my coehorn is about 3/4 scale, but my handles are fullsize (my hands are actually 5/4 scale)