A birdhouse with a built in birdbath! No screws required! Same diameter as my Egghouse which is 150mm. Also, the same door hole size which is 40mm in diameter. Has a canopy, perch, and drain hole.
Requirements:
Some twine to hang
Print both stl files - house is printed upside down
Stick perch halfway into the door hole
Push the perch down the center of the hole to where the crescent hole is
Rope some twine through the holes located on the top brim of the bath to hang the birdbathhouse
Stick your rod/stick/skewer through the 4mm holes for an interior roosting perch
The author hasn't provided the model origin yet.