Universal cart and interchangeable attachment system

A portable toy including a toy push cart frame and one toy attachment. The frame includes a base portion of a predetermined width and at least one projection upwardly extending from the base portion. The projection has a height which is greater than the width of the base portion. The frame interchangeably supports and is removeably coupled to one of a plurality of toy attachments. A toy utilitarian attachment includes a toy body configured for removable and interchangeable attachment to the universal push cart frame. The body is substantially suspended from the base portion of the body, the body formed as one of a shop cart basket, a doll stroller seat, a tool box, a work bench, a refuse container, a garden equipment container; a serving bin and a toddler activity center. A universal push cart system includes a push cart frame and at least two interchangeable attachments or bodies. An injection molded wheel and hub assembly for a toy vehicle. The wheel and hub assembly includes first and second disks. The first disk has a hub opening. The second disk is coupled to the first disk to form the wheel and hub assembly. The second disk has an axial projection for engaging the hub opening. The axial projection includes an axle receiving opening.