How can I create art with plastic milk jug lids?

How about holiday ornaments? https://www.hometalk.com/diy/craft/ornaments/create-children-s-christmas-ornaments-from-milk-and-soda-lids-5645075?crlt.pid=camp.eipWhSpP6xIe

I found the cutest idea. I mean this is really cute.

https://craftsbyamanda.com/plastic-lid-ladybugs/

Here's another really cute idea: https://www.hometalk.com/diy/organize/command-centers-boards/how-to-make-magnets-using-plastic-caps-from-water-bottles-44276693

You could hot glue them to a board and then paint a pattern on it

You could string them together and add bells for a wind catcher. I made one with beads, but you could punch or drill holes in the caps and use those instead. This is my wind catcher: https://momhomeguide.com/diy-beaded-wind-chime-craft-wood/

Lots of ideas here:

https://www.hometalk.com/search/posts?filter=plastic%20milk%20jugs

I've seen mosiacs and murals on walls by simply screwing them into a wall.

Something like this? https://www.pinterest.com/pin/299278337740841187/ There are quite a few plastic cap mural ideas on Pinterest!

This is a really cute wind chime you can make: https://www.pinterest.com/pin/34902965850994400/

There are a lot of good ideas here: https://www.hometalk.com/diy/upcycle/s-save-your-bottle-caps-for-these-x-crazy-cool-ideas-28049353

Make flowers with them one for the middle and use more for peddles then a wood pencil or skewers for the stem and paper leafs

Inspiration:

https://www.demilked.com/plastic-bottle-caps-art-mary-ellen-croteau/