Toy assembly and extendable object for toy assembly

In one aspect, a toy assembly is provided, the toy assembly comprising: a toy assembly housing; an extendable object, an extension mechanism, and an extension member power source within a toy assembly housing. The extensible object includes a base, and a first extension member and a second extension member. The extension mechanism is operable to drive the first extension member and the second extension member toward an extended position, and is operatively connected to the second extension member via a lost motion connection. Driving of the extension mechanism by the extension mechanism power source drives the first extension member toward the extended position of the first extension member while consuming at least a portion of the lost motion in the lost motion connection such that the toy assembly housing is broken or opened to expose the stretchable object. Upon depleting the lost motion, the extension mechanism is further driven to drive the first extension member and the second extension member toward th