Like has already been posted, food service industry has a ton, pickles,=2.5 or 5 gl rnd or square, mayonnaise, peeled boiled eggs, and a ton more I know off, I like the green ones. Hardest thing will be getting some free during this crazy time. Maybe a hospital, prison, CAF (that's were I get mine) or any large institutional cooking establishment. Most just put in recycling. Good luck.
HM