Zacharias Reinhardt showed my how to create this nice Buoy. More things you can learn here:
All textures used are created or changed by me and are therefore open source. The base texture is from "die codisten". ( http://flickrhivemind.net/User/codisten/Interesting ) Please give credit to them if used.
(Found with: http://search.creativecommons.org ) Hope you like it!