Cremation. Put the ashes in a recycled container. Give it to his widow.
Massachusetts pays up to $1,100, and for that sum a funeral director must provide embalming, a “suitable burial garment,” a casket, a metal plate engraved with the deceased’s name, a hearse and a member of the clergy to officiate at burial. No other state has such an extensive list of requirements
Every state requires that unclaimed bodies first be offered to the largest medical school or a special office that distributes the bodies to schools of medicine, dentistry, physical therapy, mortuary science or others that use cadavers.
http://www.oregonlive.com/special/index.ssf/2009/06/disposition_of_unclaimed_bodie.html