Leash plug GoPro mount for bodyboard.
Please note: version 2 of mount part added - more robust and easier to print.
You will also need standard partially threaded size 10 hex cap bolt (approx 64 mm - 2.5 inch length) to assemble the mount.
You can glue the top peg together with mount to increase construct stability.
I have printed this with Replicator 2X using ABS and HIPS supports at 0.2 mm resolution using 3 shells and 80% fill.
I think it can print nicely without supports. Let me know how it goes.