IKEA 365 Bowl Lid

Best printed with TPU with a shore hardness of 50..60D, e.g. extrudr Flex Hard. That gives the feel of a tupperware lid. Also, that material can be put in the dishwasher safely.

Of course you can also use 95A material, but might want to set the infill to 100% then for more stiffness.

Just print it as it is, no supports needed.

I've also added STL files for other diameters.