That awkward moment........IMO those types of things are just another money-making marketing ploy.... What is the purpose of having a 'teething' baby chew on these things? Babies are teething for the first few years of their lives. Contrary to popular belief teething is not painful to babies although it can cause them to be irritable but I believe the irritability comes from the fact they are going through a growth spurt, which brings on the teething. Babies go through many growth spurts as we all know and major developmental milestones oin the first year particularly yet we always put it down to teething, just because they happen to have teeth come through at the same time.
There's no evidence to prove these things make any difference at all.... they cost about $25 which is a total rip-off! Maybe your baby will stop crying if chewing on one... but maybe they would have stopped anyway with or without the beads...? I don't know, but I didn't buy into it and I henstly just think that some babies do better than others or cry more than others no matter what you do.