When twins come to us, it is best to assign them each a different rattle. This helps in telling the charmers apart. Simply ask them to raise their respective wood-turned noise makers and presto: a simple inspection of the rattles will clarify Tweedle identity.
Similarly, train them while they’re young to keep rattling wherever they may be and you will always be able to locate them on their travels.
NANOTRAY 
Extraordinarily beautiful rattles that my twin daughters will enjoy as children and later cherish as adults. These rattles are sure to become a family heirloom. Thank you Mr. Maarten Meerman for your generosity.
I very much hope that they are going to be used for a long long time.
Thanks for the nice comment