PlatformKIDS Art Festival is an annual showcase of Polk Co K-12 student visual and performance arts. We anticipate 1,044 visitors to the performance and exhibition opening day; and 2,280 visitors during the week-long exhibition.. Over 29 visual art schools, and 15 performance arts organizations participate each year.. PlatformKIDS is a Platform Art program funded in part by the George W. Jenkins Fund within the Community Foundation and community partners.