I have just recently purchased an allergy ID bracelet from Ice Gem. At first my son was reluctant to wear it but a few months down the line he seems to have a new found interest in it. I thought it would be a good thing for starting nursery and we have a few classes lined up for the Summer holidays where I wont always be with him and snacks will be about. I think these are a great idea and they come in so many designs and options. I went for a space themed one with allergies inscribed on front and on the back I have my sons name, date of birth, list of allergies, where epipen located and both mine and my husbands mobile number. It is just another thing that can help put your mind at rest when your little one ventures out.
Some of the best sites for Allergy bracelets I have come across are: