My friend Chris Short…
…has made his own one of these which I was privileged enough to see recently at his house. Chris Short is part of the brilliant band The Churchfitters who play and sing all sorts of interesting stuff on all sorts of interesting instruments such as the saw and hub-cap banjo and motorbike petrol tank bass. You must go and see them.
Chris – maybe you’d be interested to see this from The Book Of Knowledge 1918 (Canada – Grolier). See the page number!