This is a simple addon for your 3D Printer!
You can customize the size of the hole and the clamb.
New chap filament source:
if you are intersted in that, then you also might like a Ugrinski Windturbine
or a self watering groot planter:
Main site: (feel free to click around in my designs (: )
On this site, I will in future sell in additrion to my normal designs some better ones!