Using flexible TPU filament and choosing appropriate sizes during customization it fits well and pretty easy to handle and clean. After several attempts with rigid PLA it is a charm in our bathroom.
The hexagonal pieces allow a quicker water flow so we opted for them. But I'm sharing the round pattern as well, in case you want to play with the shapes.
Printer brand: Prusa
Printer: i3 MK2S
Rafts: No
Supports: No
Resolution: 0.15mm
Infill: 20%
Filament_brand: DevilDesign
Filament_colour: natural (translucent)
Filament_material: TPU
The author hasn't provided the model origin yet.