When my wife's bamboo lid started molding, I engineered a custom replacement that reuses the same silicone gasket and straw seal—no need to toss the whole setup.

Printing settings

• Layer height: 0.20
• Walls loops: 3
• Bottom shell layers: 4
• Top shell layer: 4
• Infill: 15%+
• Supports: Yes
• Material: PETG, ASA, or ABS