I'm not sure they make those little green baskets anymore - most of the time, they are in a plastic tray that has holes in the bottom, but not the top / sides.
I must admit, the obvious solution, though not the most pleasant, is to go borrow one of the fish traps available in the member's only forum and remove Mr. Potter...
(Or the clam)...
Thinking long term...
(Sorry, not trying to sound like a smart aleck, for once... )
drop by your local dollar store. most of them sell these plastic baskets that folks use to store cosmetics, pencils and stuff. most stores will carry assorted sizes. i think you'll want some that will allow good water flow and light thru the holes.