Marguerite Lanthier/Daily News photo

Emily Cummings, local history/adult programming coordinator at the Dickinson County Library in Iron Mountain, organizes dresses in preparation for the 15th-annual Prom Dress Swap, which is underway until 3:30 p.m. today and 1 to 4:30 p.m. Sunday at the library in Iron Mountain. This event invites teens to choose a dress and/or accessories — such as a tie, shoes and jewelry — free of charge. Teens do not need to donate an item or be a library cardholder to participate. All are welcome.