Sandman (Marvel)

The Sandman is a dangerous, sand-made creature in the Spider-Man series. His DNA was transformed to match the the chemical composition of small rocks and minerals. At his will, he can transform the shape of his body and use it as a weapon, or blow away into a large gust of wind. This makes him a formidable opponent.

In the Film
The Sandman is seen in Marvel's film: Spider-Man 3, when Flint Marko's life changed. He stole some money from New York's local bank to help his ill daughter, and the NYPD was onto him. During a chase, he accidentally fell into a large particle accelerator. Once the large mixers started to spin, there was no way out. Marko's body gradually began to disintegrate, and settled along with the millions of sand particles in the pit.