How to make your own bespoke hat blocks for wet felting from craft foam. No special tools required, just a carving knife and sandpaper. Time lapse of final shaping and sanding at end of video. Hat size template: https://mellysews.com/2014/05/sew-hat... Time lapse of final shaping and sanding at 13.06. Search eBay or web for 'blue craft foam' for supplier.