3M™ Marine Oil and Fuel Absorbent Bilge Pillow, 7 in x 15 in
Hold up to two quarts of oil. Just toss the pillow in the bilge, and it soaks up oil and gasoline, but repels water. The bilge water can then be pumped overboard legally.
The pillow includes a speacial grommeted hole which can be used to tie the pillow in place.