Having failed to find one for my ED78 Fieldscope I had a go at making one from a sheet of neoprene. Various features of the geometry of the scope, not least the offset eyepiece made it an interesting challenge. I managed to work it out eventually and have a one-piece case that covers the scopes far as the objective lens and eyepiece. The focussing wheel is covered by a flap that overlaps the case either side. I thought I'd share the details here in case anyone else wants to make the same. Note, the outline of the case is very slightly distorted where it has stretched a bit in use (the edge at the eyepiece end started out straight for example) - but it gives you a basic geometry that works. It's held together with velcro strips. The cable ties are not required - they're my 'sights'.