I saw an excellent idea at Warwick recently. One lady had sewn some webbing onto non slip backing with a plastic D ring attached. This was wound around each end of the concertina and fastened with velcro. She then had a neck strap which attached to the rings. No damage at all to concertina and a very attractice looking strap. Fully intend to try to make similar myself if I can find someone to sell me the plastic rings.