Square Pots?

I can find the small black plastic square ones, 4 inches or so.

Above that I cannot find them near me. Anyone have site that sell these? I'd rather do square to save space. Just looking for cheap ones with saucers.

1 Gallon I guess would be the size. Links appreciated! Thank you!

you could probably find some square buckets. other than that, just use your imagination, im sure you could find something square to use. if you need to you can always get a box and line it with a garbage bag.