Denver, Colorado - Bright, colorful and ugly sweaters are a staple for the holidays - so why not use them for a good cause?
Thousands of runners wearing their ugliest holiday sweater hit the streets in Denver for the annual Ugly Sweater Run.
The 5K benefited the U.S. Marine Corps Toys for Tots program.
The run included a "snow" machine at the finish line - which was just a blast of shaving cream.
