Vase Mode Glass Cover / Coaster

[Edit] Someone pointed out to me that I left my bowl-sized cover as the upload model so it printed large! I have now updated the file so that the cover will print at 80mm diameter. I figured people would just scale in their slicer anyway, but decided to update so the size wasn't too large. When you go to print it make sure to size it to fit the glass/bowl container of your choice and adjust the X and Y (but NOT the Z) sizes.

I got tired of using plastic wrap and bags to cover drinks that are left in the fridge, so I made these. Yes, they are a simple model - I'm not ready for bridge engineering yet. 

I wanted to make them quick to print and so decided to use Vase Mode. I did make the base thicker than normal, though. 
Use my 3MF file as is which includes the check box for Vase Mode if you've never used it. If you uncheck it you'll just end up with a flat disk!
You can also scale them to fit bowls and half empty cans of food!

I suggest using PETG if you're putting them in the fridge.

These are thin and lightweight and I wouldn't use them outside on a windy day (unless you're playing Frisbee Golf!)

And, finally, they can be used as drink coasters!