Even Gandalf's magic couldn't do better. Using nothing but sand and water (and a single brace to keep birds from toppling the highest tower), Joseph Alvernaz recreated the Middle Earth icon.
Source: buckaroojoe.deviantart.com
Source: buckaroojoe.deviantart.com
Source: buckaroojoe.deviantart.com
Source: buckaroojoe.deviantart.com