Could just DIY with some PVC. Convention-safe but can still take a hit.
Core (green bits) of 3/4" SCH40 or SCH80 PVC pipe or a 1" wooden poplar dowel. Both have an OD of about 1". Avoid Class200 thinwall PVC for the core - it'll crack right open on a good hit.
Most of the detailing (cyan bits) would be pieces of 1" SCH40 PVC Pipe cut and slid over the base pipe. They'd need to be sanded to fit over 3/4" pipe, but should be a loose fit over the wooden dowel. Screw and/or glue to secure.
Last bit of detailing (orange bits) would just be 1" PVC fittings. They should PVC-Cement right onto the 1" pipe segments.
Some scrap fabric for the handles. Guitar strap to carry it over the shoulder. Could be super-accurate about building a set of rings to clip the strap to, or just get some screw-on d-rings from TCSS or the picture-hanging aisle of your local hardware store.
Drew up some basic plans for a friend of mine. I'll go ahead and share them. Excuse the large picture: