This is my attempt to convert an old fretless banjo which had a warped arm into a banjourine. I'm by no means a wood worker so I approached the construction of a new arm with an engineers eye. I made it by laminating 5 scrap pieces of 10mm thick oak and maple I had by shaping each piece on my scroll saw before gluing them all together as a wood sandwich. I set the scale length at 500mm and made the fretboard wider than usual to accommodate my size 11 hands. I then ebonized it using printer ink and gave it three coats of silk finish acrylic varnish. I used Grover tuners purchased from Stewmac. It's a bit Heath Robinson but I'm pleased with the result and it has a good tone although it feels like I'm playing on cobwebs...Steve.