Cool bird feeder, using PET bottle with wider, 38mm thread, for example from ICE TEA, NESTEA, CAPPY, DIZZY etc. From original I took only a thread, rest is my own design, inspired here: https://www.thingiverse.com/thing:251085 (from this thing comes also the hook, also redesigned/remixed).
The bowl is extra super fine tuned to be able to drain water. “Column” is super fine tuned too, it's openings are wide and high, so sunflower seeds should not get stucked.
Printed with PETG, hook with 100% infill, bowl with 25% infill, layer 0.25mm. Hook needs supports.