Vinegar Eel Culture Adapter for PET bottles, fits Bisleri 250ml - 1L.
No Supports, Print with the grill on top. Print with 3-4 perimeters to maximize water proofing.
Fill the base till the ring level with cotton. The ring level should be the max vinegar level. The rest of the space can be filled with water and harvested with a dropper.
The author marked this model as their own original creation.