Fill with homemade candy or cookies and give as gifts.
You can decorate by spray painting them, adding embellishments, bows, etc. or whatever you like and make unique storage containers for yourself and to give as gifts for varioius celebrations.
This is a great post for you.
Here's an idea I made a few years ago:
Here is what we did with a Christmas popcorn tin https://www.homeroad.net/2018/01/recycled-dry-dog-food-container.html#more