About this 3D model
This is a TPU lid for Oui-brand yogurt. It'll fit the standard size jars, not the mini ones. When I tested it it was watertight when shaken, but your mileage may vary depending on printer settings, etc. I've always liked Oui yogurt's jars, but they don't come with lids. You can order official ones but they're expensive, inconvienent, etc. Obviously these aren't foodsafe like those are, but they're fine as dust protectors for homemade candles or for trinket jars, etc, which is what I use my jars for anyways. Print with the flat side down and supports on. They'll form a ring around the inside that you can easily pull out with a pair of nippers or flush cutters.