I need some advice from some knotties who may be more creative than I am. Background info on our site: Our reception is at a newly constructed riverfront area. It was created last summer so our Oct. reception will be the first wedding reception to occur there. it is outside and close to the bar scene in town...only a block or 2 away so we have to have security there. Ok so my question....we are suppose to have wristbands or something like that if we have alcohol and have guests under 21 (which we will). Any ideas on what we could do for wristband type things that show a person is 21 besides the kind of tacky paper or plastic wristbands you get at concerts or other events? The one thing I am trying to consider is that we need them to stay on people as they get them and not have them easily transferred to younger guests.