Using coffee cans?
Before Christmas, I put in a request at work to get the coffee cans as they were emptied.
I used some to ship cookies and candies for Christmas, and made several "instant winter-sow" gardens.
But they keep coming in, and now I have 20-30 cans, big and small, and no ideas about what to do with them. Any suggestions before I send them off to my local elementary school?