Shaker siphon for garden hose

I've added one version with a inbuilt nut and another with knurling.

The internal valve should be printed with 100% infill.  The included .gcode files are configured to print the valve at 100% infill, while the outer body is set to 4 walls and 15% infill.

2024-06-30:  Fixed a problem with the female threaded version, reported by @Greenfrog_1428123

2024-06-18:  Added a female threaded version with a hex nut & knurling.

2024-06-06:  Added a version with a hex nut and some knurling.

A big thank you to the original designer for sharing their design:

Shaker siphon for garden hose by DrJones | Download free STL model | Printables.com