Thought about that, but I tend to use the 5qt jug when i do oil changes and I would take the old oil in them and tthrow the jug away.
But I just thought of those funnel collection sites that people build with PVC, that might be a good idea to put one of the can under it to collect the used oil.
Are they metal, with a vent? If so I'll send my address, you can ship them to me. Hell I bet you could even sell plastic ones on Craigslist if they had a vent. The new ventless cans are a PITA.
I just threw out 8 of 'em I didn't need. the ones with caps I take the caps and vents off to save for the others. they just take up space...but I still can't stop myself picking them up off the highway when I see one, or buying one for a quarter at a yard sale...
same with coolers...what do you do with 10 coolers, and a dozen various sizes of the playmate six and 12pack styles???
The only three I kept were one larger 6 gallon with a manual screw vent and a nozzle that doesn't drip. It also has a rubber cap on the spout. That's my favorite. Then a very similar one that is only 2 gallon I keep for two stroke gas and the last one is a steel 5 gallon military type that you would see on the back of an old FJ Cruiser or safari vehicle. It's empty but too cool to get rid of.
Cans are good for ever - it's getting decent replacement nozzles that are a pain in the rear. I just give 'em away to the local swap shed at the dump. I have a couple of the new "No-Spill" cans and in spite of the expense, I love 'em.