What materials are usually used for these? Ie. when dividing the top and back pieces... I gather that its usually a veneer of some sort. I was in the hardware store recently and I saw 'iron on' veneers, and some that were made of 'melamine' (sp?). I want a black accent line between the top and back of the bass that I'm building. Will this iron on black 'melamine' do the trick, or is there something more specific of higher grade that I need?