And what to do with them? I don't drink much of that stuff any more, but like all good hoarders, I stuck a few back... just in case.
I have used them over time. One way was to cut the top off and use it for a funnel. It fits perfectly into the tops of gallon milk jugs.
I used the bottom half to hold silverware. I wash dishes by hand so I use it to drain them. You could cut it a little shorter and use it to hold silverware or plastic ware for picnics or other informal gatherings. Be sure to trim the top evenly or you'll get scratched.
Using the bottom half again, rim the edge with colored tape and/or paint it and store knitting needles in it. Cut it a little shorter for short needles or crochet hooks, longer for long needles and long afghan hooks.
Cut one in two, then cut three or four two inch slits in the top half. Put yarn you're working with in the bottom half and put the top half on, overlapping the two edges that you slit and pushing the top half down firmly. Thread the end of the yarn you're working with through the top. Your yarn won't get tangled or dusty and the cat can't play with it. (Maybe.)
Using the same method, create a terrarium. Keep the lid on the top to keep moisture from escaping.
Make an ant farm with one. Ants can't climb up the slippery sides, especially upside down like the curving top will have them doing. Remove all labels so you can see the ants easily.
Fill one with sand or dirt for a door stop.
The bottom line is that they're containers that you can cut easily to suit your needs. When you cover the cut edge they can be used for anything that doesn't require heat. Serve salads in them, use them for planters, keep odds and ends stored in them, carry water in them, let the kids play with them without cutting them. They make grand water "guns" (more on the order of canons!).
Oh, yes... in the winter, fill one with hot water and use it to keep your feet warm. The lids close tightly so you don't have to worry about a leak and the water will stay warm an amazingly long time.
So what did I miss?