I wanted to try a boar bristle brush so I ordered a 22mm boar Knot from TGN, turned a simple handle from a piece of osage orange and there you have it. I am very impressed with the brush. Way softer than I anticipated with backbone. I am really impressed with this knot.
Very nicely done. I don't have a lathe, but I'm tempted to give making my own handle a shot. Maybe after I finish off a few more restorations in process.