An innovative baby appliance support makes it possible to keep baby’s pacifier clean while in use. Parallel test data is routed from a core circuit to a parallel-to-serial converter in an inputoutput circuit. In a second shot mold cavity, a cover is formed on at least a portion of the substrate by co-injecting into a mold chamber a third and fourth material in a second shot of the molding operation. The decoding circuitry also retrieves data related to the symbol from the state memory.