These mushroom cap cover not only add a bit of interest to bottles, they can also provide a larger surface to grid and more leverage to make opening bottles easier. Add a bit of paint or color in Prusa Slicer to liven then up and create variations.

Simply press the mushroom onto the bottle cap, twisting in one direction until seated.

Versions with 20mm and 30mm openings are included along with STEP files to make modifying easier.

The models can be scaled to fit other sizes, but scaling down too much may make the fins too thin, and scaling up a lot may make them too rigid. The Z direction can also have a different scale value to map the mushroom cap taller or flatter for a more ‘smushed’ look.

Note: disable supports as they may be difficult to remove from around the fins. This will print fine without them except for a few stray strands on the inner top surface.