Went to Gander Mountain today, saw they had the 5 gallon bucket liners for $7.99, so I picked one up along with the lid (same price), an aerator stone, and a cheap ($10) 2-D cell battery-powered pump (until I can get a 12v to run from a larger battery). I've found my larger cooler converted to minnow keeper is just too large for a smaller boat. Just thought I'd let those know who had a GM nearby that they could find the styrofoam bucket liners there.