a friend of mine made one, a selfbow, swore it was the best shooting bow he ever made until it blew up after less than a thousand shots. it was about 2" wide limbs, probably roughly 66" long. ive held the pieces, and it was definitely lighter weight than it should have been if you follow the mass principle. i would think it could be done if long and wide enough. might be good with a backing if you toasted the belly... maybe. im not real familiar with the properties so im just guessing.