SAN DIEGO (CBS 8) - Rady Children's Hospital put on an unusual art installation Saturday morning and it was all for a good cause.

The hospital rolled out a red carpet and local student groups arranged thousands of quarters to create art. It's all part of the Miracle Mile of Quarters, an event that kicks off Rady Children's Miracle Month of May.

The event has helped raise more than $3 million for pediatric trauma prevention programs at the hospital in the past 30 years.