You could also contain the waste using reclaimed wood e.g. old pallets to make a large box type structure – leaving the base and top open, cover with old carpet/polythene.
gallech ddefnyddio paletau nad oes eu hangen ar neb mwyach i wneud blwch mawr - gadewch y gwaelod yn agored a gallwch roi hen garped neu ddarn o bolythen dros y deunyddiau gwastraff.