Sand Time

With this sweltering heat, a lot of people head to the beach to try and cool off, relax, and maybe build the occasional sand castle.  The following pictures are when people have been in the heat waaaaay to long and in there feverish state come up with these amazingly complicated, delicate, temporary works of art.  These ones are all based on books of some sort.

There is so much talent involved in making these, a lot of time and effort goes into the sculptures, even though the artists know they are only temporary.
What is your favorite type of sand art?  Do you have the patience to build intricate and stunning sand works of art?  Are you one of those people who likes to build sand castles just so you can knock them down?