Like a fanny pack? I have seen a lot of free patterns for these on the internet :D:D:D
http://www.lazygirldesigns.com/bags.php
Here is a video on how to make them out of used back packs :D
http://www.doityourself.com/video/Ho...Pack-171084373
http://sewing.about.com/od/sewingfor...sfannypack.htm