This is a pattern that can be used to make a no-sew double-walled sturdy square-ish bowl (or pot, if it’s taller than it is wide) of just about any size you like. You work the outer base, turn for the outer wall, turn twice for the top edge, then work what will be the inner wall and finally the inner base, then actually push the inside into the bowl and it will stay in place – although you COULD put a stitch in there if you want to do that. It looks quite good if you change colours for the base and sides and/or the inside and outsides. It’s really easy, too, and self-supporting. You can also use it to make the biggest possible bowl using up whatever leftover yarn you have from your previous projects, which I find very useful to avoid waste! The pattern will tell you how to work out how to decide how big you can go before you start working the inside.