Screw the bottoms into a wall (the stud preferably) with two screws so they won't turn and use them for storing season packettes or other small items in your pantry.

If you have a number of them the same size you can make one of those funny looking footstools that coffee cans used to be used to make.

Store Leggos or other small toy parts in them.

Fill them with sand and cover the outside with fabric and use them as a doorstop.

Use one to hold a first aide kit in to keep at home or in your vehicle.

If you have a very pretty one you can add cabinet knobs for feet to the bottoms and one to the center of the top for a handle. If it's not so pretty you can cover it with fabric and trim to make it pretty.

jgbm...tell me more about the footstool if you can also I like your idea about spraying them or covering with fabric.

I have a very large can from popcorn...it works out great to store my birdseeds in outdoors!

Funny how I thought you'd think that was the dumbest idea I had and debated whether to add it or not. I found a picture of a fancier one than I'd ever seen in person that I found on etsy so you have an idea what they look like when you read the article that had no pictures. I thought for sure I'd find some crafty website that offered detailed instructions with pictures, but I had no such luck.

iread...don't think I would have a use for one like that, but who knows DH might! I can suggest it if he ever needs an air filter! He'll think I am soooo bright! The things I learn on this forum! Thank you both!