Answer by  
                                                                                          tamkees (3203)
                                                            
                          
                          
                                                          They're a neat concept and can be really fun for a theme party, but they're more trouble than they're worth. It's hard to get the message out of the bottle, it's hard to find a bottle that the post office will accept and it's expensive to mail them. Staying with the castaway vibe, why not try a treasure map instead?