consider having your remains mixed with concrete to make these cones, which are used to stabalize coastlines. You can protect your country even after you are gone this way.
http://www.netl.doe.gov/kmd/cds/disk23/E-Regulatory%20Streamlining/General%5C92002%5CMT92002-11%20Final%20%2009-95%20.pdfI proposed this as a possible business venture but never could get it going. Feel free