A mold assembly for footwear components is cast as a collection of mold elements having integral attachment members. Attachment members of separate mold elements may then be joined by, e.g., welding. Handles may also be formed into one or more mold elements as part of the casting process. Outsole negatives are juxtaposed with templates for attachment tabs and/or handles and used to form ceramic casting molds. The ceramic casting molds can then be used to cast individual mold elements.