As a commander of a search & rescue team that has continued to search for the lost scout in Utah, I would like to recommend to all scout leaders a site that has whistles that attach to your childs clothing in the form of a zipper pull.  This way, it they are seperated from their fanny packs, the whistle will still be with them.  The web site is;www.itwnexus.com   They will send your organization a free sample so that you can decide if this will work for you.  The part number for the zipper pull whislte is 864-6010-5637 (orange) and for the clip that can attach to a backpack/fanny pack is 520-1500-520-2000.  We offer the Hug A Tree program in Utah and each child gets a zipper pull whistle.  They are a great hit with the kids and is something that helps them remember what they are to do when lost.  I hope this will help some of you with your programs.