I've been using river cane with success. I been using 2lb coffee cans and cutting the cane 2'-4'. I put in a row of maybe 6 laying down as much as possible then stand a few straight up. Usually I can get 10-15 in each can and only use the larger stalks to prevent too many hangups. They arn't very thick but pretty easy to fish. I put them out in either 4-pack or 6-pack orientations. Been thinking of some form of a 'T' pattern next time. They transport easy and sink well. The canes set on the angle act as a parachute and keep them upright on the drop.