Abstract: The present invention is directed to a flexible water based play materials composition, such as playing dough and/or gel-like playing material having antimicrobial properties which provides improved safety requirements and non toxicity for young children and infants playing with such product. The antimicrobial properties of the flexible play composition according to the present invention are achieved by incorporating into the mixture of the play composition a combination of two specific distinct antimicrobial ingredients, namely silver ions and benzalkonium chloride.

Abstract: A modeling clay system with dynamic features. The dynamic features may include: moving, waving, and/or rotating appendages (e.g. arms or antennae), illuminated eyes, and a speaking module, and other types of movable, illuminating or sound playing items. The various dynamic features may be achieved through use of electronic modules configured to provide the desired function, that is, the electronic modules may be configured to perform one or more of move, illuminate, or provide audio. The modeling clay may be electrically conductive. During use, the electronic module may be inserted into the modeling clay such that the feature is powered and exhibits the respective function.